yt:channel:YNbYGl89UUowy8oXkipC-Q YNbYGl89UUowy8oXkipC-Q Dr. Becky https://www.youtube.com/channel/UCYNbYGl89UUowy8oXkipC-Q 2011-11-14T19:37:18+00:00 yt:video:tdGzxJjwMJk tdGzxJjwMJk UCYNbYGl89UUowy8oXkipC-Q Dr. Becky https://www.youtube.com/channel/UCYNbYGl89UUowy8oXkipC-Q 2024-12-27T18:00:39+00:00 2024-12-29T13:22:19+00:00 Keep an eye on Venus and Saturn in the next few weeks! I want you to keep a really close eye on Venus and Saturn in particular over the next month, because they will be getting steadily closer and closer to each other as December blurs into January, until they reach their closest approach on the 18th january, known as a conjunction, when they’ll be 2 degrees apart from each other, that’s about 4 full moon widths, or a few thumbs wide held at arms length away from you. If you have multiple clear nights over the next few days this is a really nice thing to spot night after night and notice how much they’ve moved. There’s no significance to this, it’s just a pretty thing to notice in the sky, especially if you Break out some binoculars when they’re at their closest approach. #stargazing #planets #venus #saturn #shorts yt:video:I84skRsDO4M I84skRsDO4M UCYNbYGl89UUowy8oXkipC-Q Dr. Becky https://www.youtube.com/channel/UCYNbYGl89UUowy8oXkipC-Q 2024-12-26T20:00:06+00:00 2025-01-02T09:43:55+00:00 An ASTROPHYSICIST'S TOP 5 space news stories of 2024 AD | Join me in reading Nautilus in 2025, by heading to http://joinnautilus.com/drbecky you can get 15% off a membership to Nautilus, a perfect new years treat for any science enthusiast. | 2024 has seen a LOT of big astrophysics and astronomy news announced, and while I’ve tried to cover as much as I can on this channel, I could never keep up with the pace of work of my colleagues because over 31,000 astronomy research papers have been published in 2024 alone! Some of those made a bigger impact than others though, so as is becoming tradition on this channel, I figured since we’re nearing the end of the year, let’s count down my Top 5 biggest space news stories of 2024... 00:00 - Introduction 00:40 - NUMBER 5 02:57 - NUMBER 4 05:25 - NUMBER 3 07:40 - NUMBER 2 09:34 - Honourable mentions 10:49 - NUMBER 1 14:32 - Nautilus | AD 16:05 - Bloopers Irwin et al. (2024; Neptune is a different colour of blue) - https://academic.oup.com/mnras/article/527/4/11521/7511973 Mummery et al. (2024; first evidence for plunging reasons around black holes - Einstein was right!) - https://arxiv.org/pdf/2405.09175 Carniani et al. (2024; JWST's breaks most distant galaxy known record, JADES-GS-z14-0) - https://arxiv.org/pdf/2405.18485 Wolf et al. (2024; the fastest growing SMBH ever found) - https://arxiv.org/pdf/2402.15101.pdf Riess et al. (2023; cepheids with JWST) - https://arxiv.org/pdf/2401.04773.pdf Anand et al. (2023; TRGB with JWST) - https://arxiv.org/pdf/2401.04776.pdf Li et al. (2023; JAGB stars with JWST) - https://arxiv.org/pdf/2401.04777.pdf Freedman et al. (2024; JWST's look at the crisis in cosmology from CCHP) - https://arxiv.org/pdf/2408.06153 Lee et al. (2024; JAGB stars used to calculate the Hubble constant CCHP) - https://arxiv.org/pdf/2408.03474 Bellazini et al. (2004; TRGB stars used to calculate Hubble constant) - https://arxiv.org/pdf/astro-ph/0404572 Video filmed on a Sony ⍺7 IV Video edited by Martino Gasparrini: https://www.fiverr.com/mgs_editing --- 📚 My new book, "A Brief History of Black Holes", out NOW in hardback, paperback, e-book and audiobook (which I narrated myself!): http://lnk.to/DrBecky --- 👕 My new merch, including JWST designs, are available here (with worldwide shipping!): https://dr-becky.teemill.com/ --- 🎧 Royal Astronomical Society Podcast that I co-host: podfollow.com/supermassive --- 🔔 Don't forget to subscribe and click the little bell icon to be notified when I post a new video! --- 👩🏽‍💻 I'm Dr. Becky Smethurst, an astrophysicist at the University of Oxford (Christ Church). I love making videos about science with an unnatural level of enthusiasm. I like to focus on how we know things, not just what we know. And especially, the things we still don't know. If you've ever wondered about something in space and couldn't find an answer online - you can ask me! My day job is to do research into how supermassive black holes can affect the galaxies that they live in. In particular, I look at whether the energy output from the disk of material orbiting around a growing supermassive black hole can stop a galaxy from forming stars. http://drbecky.uk.com yt:video:Ah0Anuxv4Dc Ah0Anuxv4Dc UCYNbYGl89UUowy8oXkipC-Q Dr. Becky https://www.youtube.com/channel/UCYNbYGl89UUowy8oXkipC-Q 2024-12-19T20:15:00+00:00 2024-12-25T00:46:00+00:00 The International Space Station looks a lot like Santa Claus' sleigh! Don't let your kids confuse the two this Christmas Eve or Christmas morning - check when the ISS will pass over your location here: https://spotthestation.nasa.gov/home.cfm #stargazing #iss #spacestation #nasa #space #christmas #santaclaus yt:video:KuTVjuXu7uE KuTVjuXu7uE UCYNbYGl89UUowy8oXkipC-Q Dr. Becky https://www.youtube.com/channel/UCYNbYGl89UUowy8oXkipC-Q 2024-12-19T20:00:09+00:00 2024-12-21T14:38:54+00:00 The mystery of JWST's "little red dots" solved?! Night Sky News December 2024 Go to https://ground.news/drbecky to stay fully informed with the latest Space and Science news. Save 50% off the Vantage plan through my link for unlimited access this month only. - AD | Hello and welcome to this episode of Night Sky News for December 2024! This is the show where we chat about what you should look out for in the night sky in the next month, and what’s been happening in space news in the past month. In this episode we’re chatting about whether there are streams of interstellar objects that the Solar System is passing through, the latest report on the funding of the Thirty Metre Telescope and the Giant Magellan Telescope, JWST's image of the Sombrero Galaxy, and two new papers on the mystery of JWST's "little red dot" galaxies - are they growing supermassive black holes? Or something else...? Find out when the International Space Station will pass over your location this Christmas (and don't confuse it for Santa's sleigh 😉 https://spotthestation.nasa.gov/home.cfm The report on the status of the Thirty Meter Telescope and Giant Magellan Telescope projects: https://nsf-gov-resources.nsf.gov/files/ELT-Evaluation-Panel-Report.pdf My previous videos on the Crisis in Cosmology - https://www.youtube.com/playlist?list=PLd19WvC9yqUf5TRqYoMYxEwjT6JIDW4Zn My previous Night Sky News video covering NSF's ultimatum on choosing one of TMT or GMT: Tripodi et al. (2024; a growing black hole in an LRD) - https://arxiv.org/pdf/2412.04983 Labbe et al. (2024; detecting the galaxy light in an LRD) - https://arxiv.org/pdf/2412.04557 Forbes et al. (2024; streams of interstellar objects) - https://arxiv.org/pdf/2411.14577 00:00 Introduction 00:54 Planets near the Solstice 02:02 Venus and Saturn conjunction 02:55 Spot the Space Station at Christmas 03:54 Quadrantids Meteor Shower 3rd Jan 05:14 Crescent Moon Venus and Occults Saturn 4th Jan 06:38 Full Moon occults Mars 13th Jan 07:37 Ground News | AD 09:50 JWST and the Sombrero Galaxy 12:40 The report on the TMT and GMT projects 15:57 Streams of Interstellar Objects 19:27 JWST's "little red dots" mystery - 26:58 Outro 27:48 Bloopers Video filmed on a Sony ⍺7 IV Video edited by Martino Gasparrini --- 📚 My new book, "A Brief History of Black Holes", out NOW in hardback, paperback, e-book and audiobook (which I narrated myself!): http://lnk.to/DrBecky --- 👕 My new merch, including JWST designs, are available here (with worldwide shipping!): https://dr-becky.teemill.com/ --- 🎧 Royal Astronomical Society Podcast that I co-host: podfollow.com/supermassive --- 🔔 Don't forget to subscribe and click the little bell icon to be notified when I post a new video! --- 👩🏽‍💻 I'm Dr. Becky Smethurst, an astrophysicist at the University of Oxford (Christ Church). I love making videos about science with an unnatural level of enthusiasm. I like to focus on how we know things, not just what we know. And especially, the things we still don't know. If you've ever wondered about something in space and couldn't find an answer online - you can ask me! My day job is to do research into how supermassive black holes can affect the galaxies that they live in. In particular, I look at whether the energy output from the disk of material orbiting around a growing supermassive black hole can stop a galaxy from forming stars. http://drbecky.uk.com https://rebeccasmethurst.co.uk yt:video:3aIVRbWYBP4 3aIVRbWYBP4 UCYNbYGl89UUowy8oXkipC-Q Dr. Becky https://www.youtube.com/channel/UCYNbYGl89UUowy8oXkipC-Q 2024-12-12T20:00:06+00:00 2024-12-20T00:40:52+00:00 Did we find microbial LIFE on an ASTEROID? AD | Huge thanks to KiwiCo for sponsoring today’s video! Go to https://kiwico.com/astrodrbecky and use code ASTRODRBECKY for 50% off your first monthly club crate! Finding alien life is the dream for so many astrobiologists. And there have been times over the years where people have thought they might have discovered life beyond Earth. Specifically in the study of meteorites - chunks of space rock that fall to Earth. The problem there though is that in the time between them crash landing and scientists recovering them they can get contaminated with bacteria from Earth. So, there’s been two missions in the past few years that have sent probes to asteroids themselves to collect some pristine, uncontaminated asteroid material and bring it back to Earth for testing: NASA’s OSIRIS-REX mission, and the Japanese space agency, JAXA’s, Hyabusa-2 mission. And it’s in material returned from the Ryugu asteroid by Hyabusa-2 mission that Genge and collaborators found something on the surface that looked like bacteria: microbial life! Now of course this result was literally crawling all over the internet, but let’s just make it clear now that that Genge and collaborators concluded that this was Earth-based bacteria that sadly contaminated the sample. So in this video we’re going to dive into this study and how they concluded that this was sadly just Earth-life they found on the asteroid. Genge et al. (2024) - https://onlinelibrary.wiley.com/doi/10.1111/maps.14288 Kawaguchi (2019; panspermia review, Chapter 27 of astrobiology textbook) - https://link.springer.com/chapter/10.1007/978-981-13-3639-3_27 Burckle & Delaney (1999; terrestrial microfossils in meteorites) - https://articles.adsabs.harvard.edu/pdf/1999M%26PS...34..475B Oro & Tornabene (1965; bacteria contamination of meteorites) - https://www.jstor.org/stable/1717928?origin=ads Hoover et al. (1998; indigenous microfossils in meteorites) - https://www.spiedigitallibrary.org/conference-proceedings-of-spie/3441/1/Further-evidence-of-microfossils-in-carbonaceous-meteorites/10.1117/12.319839.short Hoover et al. (2018; indigenous microfossils in meteorites) - https://link.springer.com/article/10.1134/S0031030118130051 Rozanov et al. (2021; indigenous microfossils in meteorites) - https://link.springer.com/article/10.1134/S0031030121010111 00:00 Introduction 01:50 - AD | Kiwi Co 03:18 - Why we even care about finding life on asteroids (i.e. panspermia) 07:55 - What Genge and collaborators found 10:10 - Why they think this was contamination from Earth bacteria 12:58 - What implications this result has 15:17 - Bloopers Video filmed on a Sony ⍺7 IV Video edited by Martino Gasparrini: https://www.fiverr.com/mgs_editing --- 📚 My new book, "A Brief History of Black Holes", out NOW in hardback, paperback, e-book and audiobook (which I narrated myself!): http://lnk.to/DrBecky --- 👕 My new merch, including JWST designs, are available here (with worldwide shipping!): https://dr-becky.teemill.com/ --- 🎧 Royal Astronomical Society Podcast that I co-host: podfollow.com/supermassive --- 🔔 Don't forget to subscribe and click the little bell icon to be notified when I post a new video! --- 👩🏽‍💻 I'm Dr. Becky Smethurst, an astrophysicist at the University of Oxford (Christ Church). I love making videos about science with an unnatural level of enthusiasm. I like to focus on how we know things, not just what we know. And especially, the things we still don't know. If you've ever wondered about something in space and couldn't find an answer online - you can ask me! My day job is to do research into how supermassive black holes can affect the galaxies that they live in. In particular, I look at whether the energy output from the disk of material orbiting around a growing supermassive black hole can stop a galaxy from forming stars. http://drbecky.uk.com yt:video:HJ8F0pfNTgM HJ8F0pfNTgM UCYNbYGl89UUowy8oXkipC-Q Dr. Becky https://www.youtube.com/channel/UCYNbYGl89UUowy8oXkipC-Q 2024-12-05T20:00:07+00:00 2024-12-19T05:36:25+00:00 Has JWST shown that dark matter doesn’t exist? AD | Enjoy 10% OFF on all Hoverpens and free shipping to most countries with code DRBECKY: North America, UK, & other countries: https://bit.ly/drbecky_novium Europe: https://bit.ly/drbecky_noviumeu We don’t yet understand the early Universe. And that’s not surprising because for a long time we weren’t able to observe the distant Universe, because telescopes couldn’t see that far. That is until the James Webb Space Telescope, which has now allowed us to see galaxies at greater distances than ever before, and those galaxies are confusing us. Which is not surprising since all our models were extrapolated from what we’d seen with the Hubble Space Telescope in the nearby Universe. So because we’re still learning about the early Universe, there’s been lots of discussion in research articles about what could explain what we’ve seen, with lots of ideas raised. One that’s been highlighted this past month is in a research paper from McGaugh and collaborators which focussed on the “over massive” galaxies that JWST has found, that I’ve covered on this channel before including their discovery, and some possible explanations for them. Now McGaugh and collaborators have another possible explanation that these galaxies were predicted by an alternative theory of gravity, known as MOND, that doesn’t need dark matter to explain the Universe... My previous videos on JWST's overmassive galaxies problem - https://www.youtube.com/playlist?list=PLd19WvC9yqUcl4TksvGTTL5NSdQwobWvh My previous video on the evidence for dark matter - https://www.youtube.com/watch?v=nbE8B7zggUg My previous videos on alternate theories of gravity - https://www.youtube.com/playlist?list=PLd19WvC9yqUe_IteZI-qP_yqvohNR9Of3 McGaugh et al. (2024) - https://iopscience.iop.org/article/10.3847/1538-4357/ad834d Milgrom (1983; first MOND paper) - https://articles.adsabs.harvard.edu/pdf/1983ApJ...270..365M Anglés-Alcázar et al. (2017; FIRE sims) - https://academic.oup.com/mnras/article/470/4/4698/3871367?login=true Rodriguez-Gomez et al. (2016; Illustris sims) - https://academic.oup.com/mnras/article/458/3/2371/2589235 00:00 Introduction 02:14 AD | Novium Hoverpens 03:57 A recap of JWST's "overmassive" galaxies problem 09:23 What is MOND? 13:22 What are McGaugh and collaborators claiming? 16:59 What are the caveats and implications for this result? 23:42 Bloopers Video filmed on a Sony ⍺7 IV Video edited by Martino Gasparrini: https://www.fiverr.com/mgs_editing --- 📚 My new book, "A Brief History of Black Holes", out NOW in hardback, paperback, e-book and audiobook (which I narrated myself!): http://lnk.to/DrBecky --- 👕 My new merch, including JWST designs, are available here (with worldwide shipping!): https://dr-becky.teemill.com/ --- 🎧 Royal Astronomical Society Podcast that I co-host: podfollow.com/supermassive --- 🔔 Don't forget to subscribe and click the little bell icon to be notified when I post a new video! --- 👩🏽‍💻 I'm Dr. Becky Smethurst, an astrophysicist at the University of Oxford (Christ Church). I love making videos about science with an unnatural level of enthusiasm. I like to focus on how we know things, not just what we know. And especially, the things we still don't know. If you've ever wondered about something in space and couldn't find an answer online - you can ask me! My day job is to do research into how supermassive black holes can affect the galaxies that they live in. In particular, I look at whether the energy output from the disk of material orbiting around a growing supermassive black hole can stop a galaxy from forming stars. http://drbecky.uk.com yt:video:nTOsFVTaPSk nTOsFVTaPSk UCYNbYGl89UUowy8oXkipC-Q Dr. Becky https://www.youtube.com/channel/UCYNbYGl89UUowy8oXkipC-Q 2024-11-28T20:00:24+00:00 2024-12-21T03:11:11+00:00 WHEN did the first ever stars form in the Universe? Head to https://squarespace.com/drbecky to save 10% off your first purchase of a website or domain using code DRBECKY - AD | One of the ultimate goals of all of astrophysics has always been to work out when the very first stars formed in the Universe. Now you might have heard people talk about how incredible JWST is and how we can see galaxies further back than ever before but JWST can’t see back to the first stars forming. So, if we want to observe the era when the very first stars form, we have to get clever, and turn instead to radio astronomy, to try and detect the impact that the first stars had on the hydrogen gas around them, to pinpoint when that happened in the universe’s history and complete that missing bit of the puzzle. Now people have been trying to do this for years with ever growing radio telescopes, and there was even a tentative claim of a detection back in 2018 from Bowman and collaborators which has been under a lot of scrutiny in the past few years, and now everyone’s hopes are resting on the Square Kilometre Array radio telescope... 00:00 - Introduction 02:44 - Squarespace AD 04:13 - What are the first stars (known as Population III stars) thought to be like? 08:57 - What impact do they have on the Universe 12:02 - How we hope to detect that impact 15:41 - The tentative detection from Bowman and collaborators in 2018 20:19 - How the Square Kilometre Array should help 24:02 - Bloopers Bowman et al. (2018; detection of 21cm reionization signal with EDGES? No) - https://arxiv.org/pdf/1810.05912 Chapman et al. (2022; review of detecting the epoch of reionization with radio telescopes) - https://arxiv.org/pdf/2212.00733 Aguado et al. (2023; most metal-poor star detected) - https://www.aanda.org/articles/aa/full_html/2023/01/aa45392-22/aa45392-22.html Chantavat et al. (2023; the most massive population III stars) - https://arxiv.org/pdf/2302.09763 Frebel et al. (2005; metal-poor star spectrum) - https://articles.adsabs.harvard.edu/pdf/2005IAUS..228..207F Maiolino et al. (2023; population III star signatures observed with JWST) - https://arxiv.org/pdf/2306.00953 Pritchard & Loeb (2012; review of 21cm cosmology) - https://arxiv.org/pdf/1109.6012 Singh et al. (2018; SARAS2 experiment description) - https://arxiv.org/abs/1710.01101 Singh et al. (2022; SARAS2 reports no detection of 21cm reionization signal) - https://arxiv.org/pdf/2112.06778 Correction: 14:24 This is an image of Andrew Jaffe, not Jonathan Pritchard or Abraham Loeb. Apologies to Pritchard & Loeb. Video filmed on a Sony ⍺7 IV Video edited by Martino Gasparrini: https://www.fiverr.com/mgs_editing --- 📚 My new book, "A Brief History of Black Holes", out NOW in hardback, paperback, e-book and audiobook (which I narrated myself!): http://lnk.to/DrBecky --- 👕 My new merch, including JWST designs, are available here (with worldwide shipping!): https://dr-becky.teemill.com/ --- 🎧 Royal Astronomical Society Podcast that I co-host: podfollow.com/supermassive --- 🔔 Don't forget to subscribe and click the little bell icon to be notified when I post a new video! --- 👩🏽‍💻 I'm Dr. Becky Smethurst, an astrophysicist at the University of Oxford (Christ Church). I love making videos about science with an unnatural level of enthusiasm. I like to focus on how we know things, not just what we know. And especially, the things we still don't know. If you've ever wondered about something in space and couldn't find an answer online - you can ask me! My day job is to do research into how supermassive black holes can affect the galaxies that they live in. In particular, I look at whether the energy output from the disk of material orbiting around a growing supermassive black hole can stop a galaxy from forming stars. http://drbecky.uk.com yt:video:5IE4jD1WhG4 5IE4jD1WhG4 UCYNbYGl89UUowy8oXkipC-Q Dr. Becky https://www.youtube.com/channel/UCYNbYGl89UUowy8oXkipC-Q 2024-11-21T20:00:01+00:00 2024-12-19T05:50:30+00:00 The CRISIS IN COSMOLOGY solved with black holes as dark energy?! Night Sky News November 2024 Go to https://ground.news/drbecky to stay fully informed with the latest Space and Science news. Save 50% off the Vantage plan through my link for unlimited access this month only. - AD | Hello and welcome to this episode of Night Sky News for November 2024. This is the show where we chat about what you should look out for in the night sky in the next month, and what’s been happening in space news in the past month. In this episode we’re chatting about whether there are primordial black holes in our solar system, plus the stats on the latest round of observing proposals to use JWST, and whether black holes could be dark energy, and responsible for the accelerated expansion of the universe. Croker et al. (2024; more evidence for black holes as dark energy?) - https://arxiv.org/pdf/2405.12282 Tran et al. (2024; using the solar system as a primordial black hole detector) - https://arxiv.org/pdf/2312.17217 Farrah et al. (2023; black holes as dark energy maths) - https://iopscience.iop.org/article/10.3847/2041-8213/acb704/pdf Farrah et al. (2023; black holes as dark energy observational evidence?) - https://iopscience.iop.org/article/10.3847/1538-4357/acac2e/pdf JWST Call for Proposals Cycle 4 - https://jwst-docs.stsci.edu/jwst-opportunities-and-policies/jwst-call-for-proposals-for-cycle-4#gsc.tab=0 JWST proposals breakdown for Cycle 4 - https://www.stsci.edu/contents/news/jwst/2024/jwst-observers-break-their-own-record-for-astronomical-proposal-submissions JWST proposals selected in previous cycles - https://www.stsci.edu/jwst/science-execution/approved-programs My previous videos on the Crisis in Cosmology - https://www.youtube.com/playlist?list=PLd19WvC9yqUf5TRqYoMYxEwjT6JIDW4Zn My previous video on the DESI Year 1 results - https://www.youtube.com/watch?v=LRUTnoveZs8&t=2s My previous Night Sky News video on the black holes as dark energy idea - https://youtu.be/3gg1OS435UE?t=1247 My previous video going through JWST Cycle 2 proposals - https://www.youtube.com/watch?v=qVW3IT0B4gI My previous video on the evidence for dark matter - https://www.youtube.com/watch?v=nbE8B7zggUg My previous videos on alternate theories of gravity - https://www.youtube.com/playlist?list=PLd19WvC9yqUe_IteZI-qP_yqvohNR9Of3 00:00 Introduction00:56 Venus, Jupiter, Saturn, and Mars visible 01:17 Venus in Teapot of Sagittarius 02:36 Jupiter at Opposition 7th Dec 04:27 Geminids Meteor Shower Peak (on nearly Full Moon sadly) 06:47 Ground News AD 09:12 JWST Proposal Cycle 4 15:50 Using the Solar System as a primordial black hole detector 22:35 Black holes are dark energy?! 32:28 Outro 33:10 Bloopers Video filmed on a Sony ⍺7 IV Video edited by Jonny Hyman --- 📚 My new book, "A Brief History of Black Holes", out NOW in hardback, paperback, e-book and audiobook (which I narrated myself!): http://lnk.to/DrBecky --- 👕 My new merch, including JWST designs, are available here (with worldwide shipping!): https://dr-becky.teemill.com/ --- 🎧 Royal Astronomical Society Podcast that I co-host: podfollow.com/supermassive --- 🔔 Don't forget to subscribe and click the little bell icon to be notified when I post a new video! --- 👩🏽‍💻 I'm Dr. Becky Smethurst, an astrophysicist at the University of Oxford (Christ Church). I love making videos about science with an unnatural level of enthusiasm. I like to focus on how we know things, not just what we know. And especially, the things we still don't know. If you've ever wondered about something in space and couldn't find an answer online - you can ask me! My day job is to do research into how supermassive black holes can affect the galaxies that they live in. In particular, I look at whether the energy output from the disk of material orbiting around a growing supermassive black hole can stop a galaxy from forming stars. http://drbecky.uk.com https://rebeccasmethurst.co.uk yt:video:EegNfVwEBoY EegNfVwEBoY UCYNbYGl89UUowy8oXkipC-Q Dr. Becky https://www.youtube.com/channel/UCYNbYGl89UUowy8oXkipC-Q 2024-11-14T20:00:08+00:00 2024-12-20T10:48:12+00:00 Is there hope for JWST and the TRAPPIST-1 planets after all? Head to https://squarespace.com/drbecky to save 10% off your first purchase of a website or domain using code DRBECKY - AD | One of the biggest hopes for the James Webb Space Telescope, JWST was that it could tell us whether the TRAPPIST-1 planets were habitable to life. TRAPPIST-1 is a system of 7 exoplanets orbiting around a red dwarf star, much smaller and cooler than the Sun. All 7 planets are around the same mass and size as Earth, Venus and Mars in the Solar System, so they’re thought to be rocky, but they orbit much closer in to their star, well within the distance of Mercury to the Sun. But because their star is so much cooler, the amount of light they receive still puts a few of those planets in that Goldilocks zone where wouldn’t be too hot or too cold for life to exist. Add on top of that that the star is 7.6 billion years old, which is about 3 billion years older than the solar system, so there should have been enough time for life to evolve on these planets, only *if* they have atmospheres. And that is a big IF, and something that we want JWST to answer. It’s just that there’s been a lot of doubt recently about whether it’s even worth looking for signs of life on planets around red dwarfs because models have suggested that if they’re so close to their star they could get bombarded with radiation, stripping away any atmosphere that’s there. But this month this new paper by Krissansen-Totton and collaborators was published which says that not all hope is lost, and that TRAPPIST-1e in the habitable zone, according to their models should still have an atmosphere and be habitable... 00:00 - Introduction 02:55 - AD Squarespace 04:22 - What’s been found about TRAPPIST-1 so far with HST and JWST 08:54 - What we think is happening with planet formation around red dwarf stars 13:27 - What this new model from Krissansen-Totton and collaborators is showing for the planets TRAPPIST-1b and 1e 18:31 - When will we finally get JWST results for TRAPPIST-1e? 21:33 - Bloopers JWST observing schedules - https://www.stsci.edu/jwst/science-execution/observing-schedules JWST public data archive - https://mast.stsci.edu/search/ui/#/jwst Krissansen-Totton et al. (2024; new model for TRAPPIST-1b&e atmopsheres) - https://www.nature.com/articles/s41467-024-52642-6 Gillon et al. (2017; confirmation of 7 planet system around TRAPPIST-1) - https://arxiv.org/pdf/1703.01424 deWit et al. (2016; HST look at TRAPPIST-1b&c) - https://arxiv.org/pdf/1606.01103 deWit et al. (2018; HST look at TRAPPIST-1d,e,f,&g) - https://arxiv.org/pdf/1802.02250 Zieba et al. (2023; TRAPPIST-1c MIRI data release) - https://arxiv.org/pdf/2306.10150.pdf Greene et al. (2023; TRAPPIST-1b MIRI data release) - https://arxiv.org/pdf/2303.14849.pdf Bitsch et al. (2024; super-Earth or sub-Neptune formation) - https://www.aanda.org/articles/aa/full_html/2021/05/aa40793-21/aa40793-21.html Gaudi et al. (2021; demographics of discovered exoplanets) - https://arxiv.org/pdf/2011.04703 My previous video on TRAPPIST-1b & c observed with JWST: https://www.youtube.com/watch?v=cVO02Abfs84 My previous video on the search for biosignatures with JWST: https://www.youtube.com/watch?v=I1soYYbHiCg My previous video on the biosignature claim on the planet K2-18b with JWST: https://www.youtube.com/watch?v=F360SGAlI8Y Another previous video on the biosignature claim on the planet K2-18b: https://www.youtube.com/watch?v=r0lGz73rluo Video filmed on a Sony ⍺7 IV Video edited by Martino Gasparrini: https://www.fiverr.com/mgs_editing --- 📚 My new book, "A Brief History of Black Holes", out NOW in hardback, paperback, e-book and audiobook (which I narrated myself!): http://lnk.to/DrBecky --- 👕 My new merch, including JWST designs, are available here (with worldwide shipping!): https://dr-becky.teemill.com/ --- 🎧 Royal Astronomical Society Podcast that I co-host: podfollow.com/supermassive --- 🔔 Don't forget to subscribe and click the little bell icon to be notified when I post a new video! --- 👩🏽‍💻 I'm Dr. Becky Smethurst, an astrophysicist at the University of Oxford (Christ Church). I love making videos about science with an unnatural level of enthusiasm. I like to focus on how we know things, not just what we know. And especially, the things we still don't know. If you've ever wondered about something in space and couldn't find an answer online - you can ask me! My day job is to do research into how supermassive black holes can affect the galaxies that they live in. In particular, I look at whether the energy output from the disk of material orbiting around a growing supermassive black hole can stop a galaxy from forming stars. http://drbecky.uk.com yt:video:9U6bvR6SzMo 9U6bvR6SzMo UCYNbYGl89UUowy8oXkipC-Q Dr. Becky https://www.youtube.com/channel/UCYNbYGl89UUowy8oXkipC-Q 2024-11-07T20:00:04+00:00 2024-12-19T23:46:18+00:00 Is the famous black hole image "wrong"? Go to https://ground.news/drbecky to stay fully informed with the latest Space and Science news. Save 50% off the Vantage plan through my link for unlimited access this month only. - AD | Do you remember the famous images of the supermassive black holes in the centre of the galaxy M87 and our own galaxy the Milky Way that were taken by the Event Horizon Telescope? Well this month a team of researchers based in Japan, have released a paper claiming that they can’t reproduce an image with a ring-like structure with the same data of the Milky Way’s black hole, and instead get something that looks a bit more like a blob. On top of that they published a claim back in 2022 that they also couldn’t reproduce the black hole image for the M87* data as well. Now the Event Horizon Team have responded saying they think the Japanese group of researchers have got it wrong. So there’s a lot to unpack here, and this video is going to cover a lot of ground starting first with 1) A quick recap on what you’re seeing in these black hole images 2) How the Event Horizon Telescope works and how these images are constructed 3) What Miyoshi, Kato & Makino are claiming is wrong with the images, and 4) The Event Horizon Telescope team’s response and where that leaves us. 00:00 - Introduction 02:44 - Ground News AD 04:50 - A quick recap on the radio light you’re seeing in these black hole images 07:19 - How the Event Horizon Telescope works (VLBI) and how these images are constructed 10:08 - What Miyoshi, Kato & Makino are claiming is wrong with the images 15:25 - The Event Horizon Telescope team’s response and where that leaves us 22:28 - Bloopers Miyoshi, Kito & Makino (2024; claim the Sag A* image is wrong) - https://academic.oup.com/mnras/article/534/4/3237/7660988 Miyoshi, Kito & Makino (2022; claim the M87* is wrong) - https://iopscience.iop.org/article/10.3847/1538-4357/ac6ddb Previous EHT response from two years ago on M87* claims - https://eventhorizontelescope.org/blog/imaging-reanalyses-eht-data EHT response from 2024 on Sag A* claims: https://eventhorizontelescope.org/blog/response-independent-analysis-ehtc-imaging-sgr-miyoshi-et-al-2024 Patel et al. (2022; research paper with code to reproduce the black hole images yourself with public data) - https://ieeexplore.ieee.org/document/10040660 EHT announcement of M87* image with research papers linked - https://eventhorizontelescope.org/press-release-april-10-2019-astronomers-capture-first-image-black-hole EHT announcement of Sagittarius A* image with research papers linked - https://eventhorizontelescope.org/blog/astronomers-reveal-first-image-black-hole-heart-our-galaxy Public TED talk on machine learning algorithm used by EHT team - https://www.youtube.com/watch?v=P7n2rYt9wfU Seminar on machine learning algorithm used by EHT team (with more detail) - https://www.youtube.com/watch?v=UGL_OL3OrCE Video filmed on a Sony ⍺7 IV Video edited by Martino Gasparrini: https://www.fiverr.com/mgs_editing --- 📚 My new book, "A Brief History of Black Holes", out NOW in hardback, paperback, e-book and audiobook (which I narrated myself!): http://lnk.to/DrBecky --- 👕 My new merch, including JWST designs, are available here (with worldwide shipping!): https://dr-becky.teemill.com/ --- 🎧 Royal Astronomical Society Podcast that I co-host: podfollow.com/supermassive --- 🔔 Don't forget to subscribe and click the little bell icon to be notified when I post a new video! --- 👩🏽‍💻 I'm Dr. Becky Smethurst, an astrophysicist at the University of Oxford (Christ Church). I love making videos about science with an unnatural level of enthusiasm. I like to focus on how we know things, not just what we know. And especially, the things we still don't know. If you've ever wondered about something in space and couldn't find an answer online - you can ask me! My day job is to do research into how supermassive black holes can affect the galaxies that they live in. In particular, I look at whether the energy output from the disk of material orbiting around a growing supermassive black hole can stop a galaxy from forming stars. http://drbecky.uk.com https://rebeccasmethurst.co.uk yt:video:aluU80O_xSk aluU80O_xSk UCYNbYGl89UUowy8oXkipC-Q Dr. Becky https://www.youtube.com/channel/UCYNbYGl89UUowy8oXkipC-Q 2024-10-31T20:00:02+00:00 2024-12-20T12:37:06+00:00 Debunking the "technosignature from Proxima Centauri" rumours Head to https://squarespace.com/drbecky to save 10% off your first purchase of a website or domain using code DRBECKY - AD | It is time to take out the trash. Because this month saw yet another bullshit claim that an announcement of the discovery of intelligent alien life was imminent. And I got mad. Maybe it’s just because this is the tip of the iceberg of so many fake discovery claims that circle the internet, especially when it comes to JWST, which are just all absolute trash. And this week I have reached my limit and I’m going to take it all out on BLC1 - breakthrough listen candidate 1 - a radio signal detected back in 2020 which was already shown to be radio interference back in 2021, but that this month a documentary film maker claimed to have spoken to the folks at the Breakthrough Listen project who are hunting for signs of intelligent alien life in radio data, and claims that an announcement from Breakthrough and the University of Oxford about BLC1 are imminent. I’m a researcher at Oxford, and I can tell you now we all laughed. So in this video, we’re going to dive into everything we know about BLC1 to put these rumours to rest completely. First starting with: 1) BLC1’s detection back in 2020 and why it was initially thought to be a promising “technosignature” of intelligent alien life, 2) how BLC1 was ruled out as a real “technosignature", and 3) how no recurring signal has been detected since. Smith et al. (2021; BLC1 discovery) - https://arxiv.org/pdf/2111.08007 Sheikh et al. (2021; BLC1 is RFI) - https://arxiv.org/pdf/2111.06350 Sheikh et al. (2021; no repeat observations of BLC1) - https://iopscience.iop.org/article/10.3847/2515-5172/ac33b2 Choza et al. (2023; extra-galactic technosignature search) - https://arxiv.org/pdf/2312.03943 00:00 - Introduction 02:20 - Squarespace AD 03:42 - BLC1's detection in 2020 and why it was thought to be a candidate "technosignature" 09:07 - How BLC1 was ruled out as technosignature and was just radio interference 10:58 - BLC1 has never been detected again 11:44 - Bloopers Video filmed on a Sony ⍺7 IV Video edited by Martino Gasparrini: https://www.fiverr.com/mgs_editing --- 📚 My new book, "A Brief History of Black Holes", out NOW in hardback, paperback, e-book and audiobook (which I narrated myself!): http://lnk.to/DrBecky --- 👕 My new merch, including JWST designs, are available here (with worldwide shipping!): https://dr-becky.teemill.com/ --- 🎧 Royal Astronomical Society Podcast that I co-host: podfollow.com/supermassive --- 🔔 Don't forget to subscribe and click the little bell icon to be notified when I post a new video! --- 👩🏽‍💻 I'm Dr. Becky Smethurst, an astrophysicist at the University of Oxford (Christ Church). I love making videos about science with an unnatural level of enthusiasm. I like to focus on how we know things, not just what we know. And especially, the things we still don't know. If you've ever wondered about something in space and couldn't find an answer online - you can ask me! My day job is to do research into how supermassive black holes can affect the galaxies that they live in. In particular, I look at whether the energy output from the disk of material orbiting around a growing supermassive black hole can stop a galaxy from forming stars. http://drbecky.uk.com https://rebeccasmethurst.co.uk yt:video:0QGAfyrEing 0QGAfyrEing UCYNbYGl89UUowy8oXkipC-Q Dr. Becky https://www.youtube.com/channel/UCYNbYGl89UUowy8oXkipC-Q 2024-10-24T19:00:00+00:00 2024-12-19T07:26:24+00:00 Every "closest EXOPLANET to Earth" from 1995-2024 | RECORD BREAKERS AD - Go to https://ground.news/drbecky to stay fully informed with the latest Space and Science news. Save 40% off the Vantage plan through my link for unlimited access this month only. | The hunt for exoplanets, planets orbiting other stars in our galaxy the Milky Way, has been going for almost 30 years and yet in that time only 5 exoplanets have ever held the title of the “closest known exoplanet to Earth”. Because let’s face it, yes finding planets is cool, but finding the ones closest to us that who knows, one day we might be able to communicate with if there’s life on those planets, or maybe even visit if we ever crack the problem faster than light speed travel, those are the ones that capture everyone’s attention. And the fun thing is, since 2016, we’ve officially found the closest exoplanet to Earth that’s in orbit around a star. There won’t be another to hold the title. So in this video we’re going to dive into the timeline all the way from the first exoplanet discovered in 1995 of 51 Pegasi b, to the closest exoplanet to Earth in 2016, Proxima Centauri b. Mayor & Queloz (1995; 51 Pegasi b discovery) - https://www.nature.com/articles/Art1 Butler & Marcy (1996; 47 Ursae Majoris b discovery) - https://iopscience.iop.org/article/10.1086/310102/pdf Marcy et al. (1998; Gilese 876b discovery) - https://iopscience.iop.org/article/10.1086/311623/pdf Delfosse et al. (1998; Gilese 876b discovery) - https://articles.adsabs.harvard.edu/pdf/1998A&A...338L..67D Hatzes et al. (2000; Epsilon Eridani b discovery) - https://iopscience.iop.org/article/10.1086/317319/pdf Benedict et al. (2006; Epsilon Eridani b confirmation) - https://iopscience.iop.org/article/10.1086/508323/pdf Tuomi et al. (2014; hints at planet existence around Proxima Centauri) - https://arxiv.org/pdf/1403.0430 Angalde-Escudé et al. (2016; Proxima Centauri b discovery) - https://www.nature.com/articles/nature19106 Damasso et al. (2020; another planet around Proxima Centauri?) - https://www.science.org/doi/10.1126/sciadv.aax7467 Faria et al. (2022; another planet around Proxima Centauri?) - https://arxiv.org/pdf/2202.05188 00:00 Introduction 01:10 AD Ground News 03:21 1995 51 Pegasi b 50 light years 06:10 1996 47 Ursae Majoris b 46 light years 07:30 1998 Gilese 876b 15.2 light years 08:45 2000 Epsilon Eridani b 10.5 light years 10:00 Exoplanet discoveries of the 2000s and 2010s 10:43 2016 Proxima Centauri b 4.25 light years 15:29 Bloopers --- 📚 My book, "A Brief History of Black Holes", out NOW in hardback, paperback, e-book and audiobook (which I narrated myself!): http://lnk.to/DrBecky --- 👕 My new merch, including JWST designs, are available here (with worldwide shipping!): https://dr-becky.teemill.com/ --- 🎧 Royal Astronomical Society Podcast that I co-host: podfollow.com/supermassive --- 🔔 Don't forget to subscribe and click the little bell icon to be notified when I post a new video! --- 👩🏽‍💻 I'm Dr. Becky Smethurst, an astrophysicist at the University of Oxford (Christ Church). I love making videos about science with an unnatural level of enthusiasm. I like to focus on how we know things, not just what we know. And especially, the things we still don't know. If you've ever wondered about something in space and couldn't find an answer online - you can ask me! My day job is to do research into how supermassive black holes can affect the galaxies that they live in. In particular, I look at whether the energy output from the disk of material orbiting around a growing supermassive black hole can stop a galaxy from forming stars. http://drbecky.uk.com https://rebeccasmethurst.co.uk yt:video:u8DRSqVjTVA u8DRSqVjTVA UCYNbYGl89UUowy8oXkipC-Q Dr. Becky https://www.youtube.com/channel/UCYNbYGl89UUowy8oXkipC-Q 2024-10-17T19:00:27+00:00 2024-12-22T04:58:41+00:00 JWST finds galaxy where the gas outshines the stars?! | Night Sky News October 2024 The first 100 people to sign up with my trainwell link https://go.trainwell.net/DrBecky get 14-days FREE + $25 off on their 1st month! - AD | Hello and welcome to this episode of Night Sky News for October 2024! This is the show where we chat about what you should look out for in the night sky in the next month, and what’s been happening in space news in the past month. In this episode we’re chatting about SO many things, including which planets you can spot in the night sky, how to get a last look at C/2023 A3 (Tsuchinshan–ATLAS) before it gets too faint, plus the Nobel Prize in Physics for 2024 for AI tools which went to Geoffery Hinton and John Hopfield, the launch of the Europa Clipper mission and the Hera mission, Earth's new min-moon asteroid 2024 PT5, plus JWST's latest discovery of a galaxy in the distant Universe that appears as if the gas outshines the stars. Cameron et al. (2024) - https://arxiv.org/pdf/2311.02051 My previous video chatting to Alex Cameron about his work with JWST: https://www.youtube.com/watch?v=oVkDiQjaNFg 00:00 Introduction 00:54 Orionids Meteor Shower 01:54 Comet 2024/A3 Tsuchinshan-ATLAS 03:35 Toenail moon meets Venus & Mercury 03:49 Mercury greatest elongation 04:42 Saturn, Jupiter & Mars 05:13 Mars and Jupiter in the Winter Hexagon 06:55 Trainwell AD 08:54 Nobel Prize in Physics for AI 12:51 Europa Clipper launch 14:40 Hera launch to Didymos and Dimorphos 18:07 Earth has a second moon asteroid 2024 PT5 20:31 JWST's bright gas galaxy GS NDG 9422 27:43 Bloopers Video filmed on a Sony ⍺7 IV Video edited by Jonny Hyman --- 📚 My new book, "A Brief History of Black Holes", out NOW in hardback, paperback, e-book and audiobook (which I narrated myself!): http://lnk.to/DrBecky --- 👕 My new merch, including JWST designs, are available here (with worldwide shipping!): https://dr-becky.teemill.com/ --- 🎧 Royal Astronomical Society Podcast that I co-host: podfollow.com/supermassive --- 🔔 Don't forget to subscribe and click the little bell icon to be notified when I post a new video! --- 👩🏽‍💻 I'm Dr. Becky Smethurst, an astrophysicist at the University of Oxford (Christ Church). I love making videos about science with an unnatural level of enthusiasm. I like to focus on how we know things, not just what we know. And especially, the things we still don't know. If you've ever wondered about something in space and couldn't find an answer online - you can ask me! My day job is to do research into how supermassive black holes can affect the galaxies that they live in. In particular, I look at whether the energy output from the disk of material orbiting around a growing supermassive black hole can stop a galaxy from forming stars. http://drbecky.uk.com https://rebeccasmethurst.co.uk yt:video:wC1lssgsEGY wC1lssgsEGY UCYNbYGl89UUowy8oXkipC-Q Dr. Becky https://www.youtube.com/channel/UCYNbYGl89UUowy8oXkipC-Q 2024-10-10T19:00:35+00:00 2024-12-21T04:28:05+00:00 The biggest JETS from a BLACK HOLE ever found AD - Go to https://ground.news/drbecky to stay fully informed with the latest Space and Science news. Save 40% off the Vantage plan through my link for unlimited access this month only. Black holes burp. A lot. And we think these burps have a huge impact on how the Universe has evolved. If there’s a strong magnetic field around the black hole, that burp material can get funnelled up and away into a really tight jet. And these jets end up being way bigger than the entire galaxy that we find a black hole in. For example, this galaxy Hercules A is a really famous example of this, with jets than span almost a million light years. But this month, a team of astronomers, Oei and collaborators, reported finding the longest black hole jet ever seen at 23 million light years long. It is HUGE. And while it’s very cool to find the longest or biggest of something out there in the universe, this discovery also has big implications for how the Universe has evolved and galaxies grow. So in this video we’re going to chat about, 1) how Oei and collaborators found this giant black hole jet, Porphyrion, 2) the properties of Porphyrion, and how it compares to all the other black hole jets they found, and 3) what effect black hole jets of this size could have on the universe around them. Oei et al. (2024; Porphyrion discovery paper) - https://www.nature.com/articles/s41586-024-07879-y Oei et al. (2022; previous largest jet known) - https://arxiv.org/pdf/2202.05427 Mostert et al. (2024; more than 8000 jets found in LOFAR) - https://arxiv.org/pdf/2405.00232 Correa et al. (2021; cosmic void size distribution) - https://arxiv.org/pdf/2007.12064 00:00 - Introduction 02:50 - AD - Ground News 04:25 - How they found these jets? 07:11 - How do they compare to other jets? 11:00 - How do these jets effect the Universe around them? 15:21 - Bloopers --- 📚 My book, "A Brief History of Black Holes", out NOW in hardback, paperback, e-book and audiobook (which I narrated myself!): http://lnk.to/DrBecky --- 👕 My new merch, including JWST designs, are available here (with worldwide shipping!): https://dr-becky.teemill.com/ --- 🎧 Royal Astronomical Society Podcast that I co-host: podfollow.com/supermassive --- 🔔 Don't forget to subscribe and click the little bell icon to be notified when I post a new video! --- 👩🏽‍💻 I'm Dr. Becky Smethurst, an astrophysicist at the University of Oxford (Christ Church). I love making videos about science with an unnatural level of enthusiasm. I like to focus on how we know things, not just what we know. And especially, the things we still don't know. If you've ever wondered about something in space and couldn't find an answer online - you can ask me! My day job is to do research into how supermassive black holes can affect the galaxies that they live in. In particular, I look at whether the energy output from the disk of material orbiting around a growing supermassive black hole can stop a galaxy from forming stars. http://drbecky.uk.com https://rebeccasmethurst.co.uk yt:video:-CGrjQ-J-2s -CGrjQ-J-2s UCYNbYGl89UUowy8oXkipC-Q Dr. Becky https://www.youtube.com/channel/UCYNbYGl89UUowy8oXkipC-Q 2024-10-03T19:00:00+00:00 2024-12-20T08:42:35+00:00 Astrophysicist reacts to Star Trek: The Next Generation AD | Go to https://piavpn.com/Becky to get 83% off Private Internet Access with 4 months free! | In this episode of Astrophysicist reacts we're watching Star Trek: The Next Generation Season 1 Episode 6 "Where No One Has Gone Before" to pick out the science from the fiction in this sci-fi show. We're chatting about faster than light speed travel, warp drives, special relativity including time dilation, and the idea of negative energy. You can watch Star Trek: TNG on Netflix if you're in the UK: https://www.netflix.com/title/70158329 00:00 - Introduction 01:40 - How fast is the Enterprise's warp drive? 04:24 - The real equations for warp drive 05:52 - How big was the known universe in 1987 07:22 - Time dilation 08:21 - PIA VPN | AD 10:16 - Negative energy, warp drives, and dark energy 14:25 - Conclusion 16:03 - Bloopers Video filmed on a Sony ⍺7 IV --- 📚 My new book, "A Brief History of Black Holes", out NOW in hardback, paperback, e-book and audiobook (which I narrated myself!): http://lnk.to/DrBecky --- 👕 My new merch, including JWST designs, are available here (with worldwide shipping!): https://dr-becky.teemill.com/ --- 🎧 Royal Astronomical Society Podcast that I co-host: podfollow.com/supermassive --- 🔔 Don't forget to subscribe and click the little bell icon to be notified when I post a new video! --- 👩🏽‍💻 I'm Dr. Becky Smethurst, an astrophysicist at the University of Oxford (Christ Church). I love making videos about science with an unnatural level of enthusiasm. I like to focus on how we know things, not just what we know. And especially, the things we still don't know. If you've ever wondered about something in space and couldn't find an answer online - you can ask me! My day job is to do research into how supermassive black holes can affect the galaxies that they live in. In particular, I look at whether the energy output from the disk of material orbiting around a growing supermassive black hole can stop a galaxy from forming stars. http://drbecky.uk.com https://rebeccasmethurst.co.uk