Once again a JWST result has been misunderstood and twisted into something it's not on social media. In this video we're chatting about what astronomers have found, how they found these galaxies, and what that means for our understanding of the Universe. ** REFERENCES ** Labbé et al. (2023; 6 massive galaxies in JWST data) - https://arxiv.org/pdf/2207.12446.pdf Rana (1987; the initial mass function of stars) - https://articles.adsabs.harvard.edu/pdf/1987A%26A...184..104R Licquia & Newman (2015; stellar mass of the Milky Way) - https://arxiv.org/pdf/1407.1078.pdf More info on the JWST CEERS survey: https://ceers.github.io/ The JWST proposal information for CEERS: https://www.stsci.edu/jwst/phase2-public/1345.pdf JWST observing schedules: https://www.stsci.edu/jwst/science-execution/observing-schedules JWST data archive (with public access!): https://mast.stsci.edu/portal/Mashup/Clients/Mast/Portal.html Twitter bot for JWST current observations: https://twitter.com/JWSTObservation My previous video on the history of the Big Bang theory - • https://www.youtube.com/watch?v=7RCQYqwODFM&t=0s 00:00 - Introduction 00:22 - What have astronomers found in JWST data? 02:04 - Lyman break in a galaxy spectrum: DISTANCE 03:19 - Balmer break in a galaxy spectrum: AGE & MASS 04:59 - How we know heavy these galaxies are 06:18 - How you measure it with just galaxy images (not spectra) 08:02 - How heavy are these galaxies then? 09:11 - Why it's a big deal they're so big 10:28 - Does this mean the Big Bang theory is wrong? No. 11:23 - The caveats: are the measurements accurate or precise? 12:54 - What's next? Getting spectra with JWST 13:26 - Bloopers --- ? My new book, "A Brief History of Black Holes", out NOW in hardback, e-book and audiobook (which I narrated myself!): http://hyperurl.co/DrBecky --- ? "The Year In Space" celebrating all things space in 2022 from me and the rest of the Supermassive Podcast team: https://geni.us/jNcrw --- ? 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

The U.S. dollar has been under attack this year as foreign adversaries have shifted away from the currency in an effort to unseat the dollar's status as the world's reserve currency. Today, Daniela sat down with Lynette Zang, chief market analyst for ITM Trading. Lynette argues that the U.S. dollar is on a path toward losing its status as the king of global currencies. She says, "There is absolutely zero doubt in my mind that the U.S. dollar is losing its position as the world's reserve currency, but I don't really think that it will be a BRICS currency, any individual country, or a smaller group of countries that would take over that role.” Lynette also believes a recession is inevitable as the impact of the Fed's aggressive rate-hike policy gradually sets into the economy. "We are just now starting to experience the lag effects of those rapid rate rises that came in 2022 through Q1 2023. We haven't yet fully felt the impact,” she asserts. Lynette concludes by encouraging investors to explore the precious metals space in order to uncover safe-have assets. "There are opportunities, but you need to be in the right place at the right time holding the right asset so you can have that wealth transfer your way for a change,” she explains.