The Truth About JWST Detecting Alien Life...

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Published 2023-02-18
JWST is the pinnacle of our astronomical aspirations, the most sensitive telescope ever built by human hands. But can this feat of engineering resolve a question which has haunted us since the dawn of civilization - are we alone? So let's explore whether JWST could detect signatures of biology on another world, and if so under what conditions? Sponsored by Ground News, head to ground.news/coolworlds

Written and presented by Prof David Kipping, edited by Jorge Casas. Thanks to Ryan MacDonald (youtube.com/@martiancolonist) for checking over some technical points.

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::References::
► Schwieterman et al., 2018, Exoplanet Biosignatures: A Review of Remotely Detectable Signs of Life, Astrobiology, 18, 6: arxiv.org/abs/1705.05791
► Kozakis et al. 2022, Is ozone a reliable proxy for molecular oxygen? I. The O2-O3 relationship for Earth-like atmospheres, A&A, 665, 156: arxiv.org/abs/2208.09415
► Leung et al. 2022, Alternative Methylated Biosignatures I: Methyl Bromide, A Capstone Biosignature, ApJ, 938, 6: arxiv.org/abs/2208.07393
► Lin et al. 2021, Differentiating Modern and Prebiotic Earth Scenarios for TRAPPIST-1e: High-resolution Transmission Spectra and Predictions for JWST, MNRAS, 505, 3562: arxiv.org/abs/2105.09319
► Fauchez et al. 2019, Impact of Clouds and Hazes on the Simulated JWST Transmission Spectra of Habitable Zone Planets in the TRAPPIST-1 System, ApJ, 887, 194: arxiv.org/abs/1911.08596
► Kaltenegger et al. 2020, The White Dwarf Opportunity: Robust Detections of Molecules in Earth-like Exoplanet Atmospheres with the James Webb Space Telescope, ApJ, 901, 1: arxiv.org/abs/2009.07274
► Limbach et al. 2022, A New Method for Finding Nearby White Dwarf Exoplanets and Detecting Biosignatures, MNRAS, 517, 2622: arxiv.org/abs/2209.12914

::Music::
Music licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], Artlist.io, via Creative Commons (CC) Attribution License (creativecommons.org/licenses/by/4.0/), or with permission from the artist
00:00 Hill - All Flesh Is as the Grass [open.spotify.com/track/1WuMK4qy9tUSGMINoEClxL?si=5…]
03:57 & 14:59 Hill - The Great Alchemist [open.spotify.com/track/3PAx36jIsKiQMT9CQsRk4G?si=0…]
08:01 & 18:50 Outside the Sky - Trillions
11:57 Hill - We Are Unceasing Beings [open.spotify.com/track/3TnhawPMycRrPuTnKzNGNN?si=b…]
25:18 Joachim Heinrich - Stjärna

::Chapters::
00:00 Introduction
01:00 A Biosignature Primer
11:00 Sponsorship
12:21 TRAPPIST-1e
19:12 White Dwarfs
25:29 A Fool's Hope
27:05 Outro and credits

#JWST #AlienLife #Astrobiology

All Comments (21)
  • @CoolWorldsLab
    Thanks for watching everyone and thanks to Ground News for sponsoring this video. Head over to ground.news/coolworlds to give it a try for yourself and get some transparency with where your news is coming from. So do you feel optimistic/pessimistic that JWST could detect biosignatures? How important do you think this question should be for NASA/ESA/JAXA/etc?
  • Love your channel man. Makes me happy knowing there are people like you in the world pursuing things like this.
  • @robotaholic
    There is something special and magnetic about this channel and Dr. Kipping! Just can't get enough. Thank you so much for another video
  • @paganlark7037
    We have encountered technological challenges for our entire history that many believed were insurmountable, only to eventually advance through the challenge and unlock the technology. Since we can't know right now, it's most useful to just proceed ahead and assume we can detect life and traverse the stars to meet it. There is insufficient evidence to conclude otherwise and accept the defeat of our dreams.
  • @Outist
    it's always a wonderful day when cool worlds upload a video ❤️ thank you sir, for sharing your great work with us.
  • @nic1208
    Nothing like a new Cool World's video! I just love how he mixes scientific information with the philosophic ramifications to make it truly thought provoking.
  • This is by far the best atronomy channel on Youtube. I love space but most channels just cover the same old basic stuff with clickbait titles and thumbnails. You are honest about all your data and calculations and honest when something is nearly impossible but still give hope that it could happen. You also are just a really great video editor (or have a good editor) and make the content emotionally engaging (which is better than the average movie these days sadly). Keep up the great work!
  • It's one of the best content on YouTube. No click bait shite. Just pure , well explained science.
  • @Obsidian762
    I must admit that I misunderstood JWST's ability to detect bio signatures, pretty much due to excitement as well as ignorance. Thank you for the thorough explanation of what is actually possible and realistic. Stay curious!
  • @davide.2349
    I love your videos David, great work at Cool Worlds lab team!!
  • You have no idea how much I appreciate and enjoy watching your videos. I love the passion for exploring subjects that are on the edge of science and yet a balanced approach to examining them. I will continue to stay curious! Keep going!
  • @brettpaynter
    Don't know if its just me, but every time I watch a new video from Professor Kipping, I get very emotional. I don't know if its the way he explains it, his voice, the material he covers, or just that I am really into what he is talking about. This video made me choke up and I had to wipe my eyes. I think any time talk of life and the survival of life on earth is brought up it hits a cord with me. The shear crazy fact that the Earth and all life on it even exists at all in a Universe that more and more seems to be hostile to said life really is a "Fools Hope" indeed. We are Star Stuff, the Universe trying to understand itself....
  • @NLSkeletor
    I've always been fascinated by your videos and your (relatively) easy way of explaining very complex theories! Thank you for expanding my knowledge about the universe even though I'm a simple cook!
  • @knifetex
    Looking forward to this one! Thanks for making these high quality and thought provoking videos. 👍👍
  • A new video! I find myself waiting each month. Thank you for your sober, informative, thought provoking content! 🙏✨