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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-ex... 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/s4146... 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/ful... Gaudi et al. (2021; demographics of discovered exoplanets) - https://arxiv.org/pdf/2011.04703 My previous video on TRAPPIST-1b & c observed with JWST:    • First JWST TRAPPIST-1 results! Not wh...   My previous video on the search for biosignatures with JWST:    • JWST is hunting for these FOUR signs ...   My previous video on the biosignature claim on the planet K2-18b with JWST:    • Did JWST find a MARKER OF LIFE in an ...   Another previous video on the biosignature claim on the planet K2-18b:    • K2-18b: did JWST really find evidence...   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