JWST is hunting for these FOUR signs of alien life - WHERE, WHEN & HOW will we find it?!

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#jwst #life #exoplanets

“The Conversation” article by Dr Jo Barstow that inspired this video - https://theconversation.com/four-ways...
More about Dr Jo Barstow - https://www.open.ac.uk/people/jkb298
Follow Jo on Twitter -   / drjovian  
Follow Jo on Mastodon - https://mastodon.online/@drjovian

NASA's JWST blog: https://blogs.nasa.gov/webb/
JWST's weekly observing schedule: https://www.stsci.edu/jwst/science-ex...
JWST raw data archive access (public images and spectra available to download free) - https://mast.stsci.edu/portal/Mashup/...

Alderson et al. (2022; SO2 found in WASP-39b with JWST) - https://arxiv.org/pdf/2211.10488.pdf
Lyons et al. (2022; history of Oxygen in Earth’s atmosphere review) - https://www.ncbi.nlm.nih.gov/pmc/arti...
Holland et al. (2006; oxygen levels in Earth’s atmosphere with time) - https://www.ncbi.nlm.nih.gov/pmc/arti...
Greaves et al. (2021; phosphine in Venus’s atmosphere) - https://arxiv.org/pdf/2009.06593.pdf
Sousa-Silva et al. (2020; phosphine as a biosignature) - https://arxiv.org/pdf/1910.05224.pdf
Huang et al. (2022; ammonia as a biosignature) - https://arxiv.org/pdf/2107.12424.pdf
Thompson et al. (2022; methane as a biosignature) - https://arxiv.org/pdf/2204.04257.pdf
Barstow & Irwin (2016; expectations for JWST and the TRAPPIST-1 system) - https://arxiv.org/pdf/1605.07352.pdf
Barstow et al. (2016; telling the difference between Venus-like and Earth-like exoplanets) - https://arxiv.org/pdf/1602.08277.pdf
Mikal-Evans et al. (2022; HST phase curve of WASP-121b) - https://arxiv.org/pdf/2202.09884.pdf

Phosphine on Venus Night Sky News video -    • Is there life on Venus?! And was the Sun b...  
Contesting phosphine on Venus discovery Night Sky news video - https://studio.youtube.com/video/mjbK...

00:00 - Introduction
00:46 - What is a biosignature and how do we find them?
03:11 - 1) Oxygen & Ozone
04:53 - 2) Phosphine & Ammonia
07:04 - 3) Methane & Carbon Dioxide
08:13 - 4) Unexpected molecule combinations
09:58- Chat with Dr Jo Barstow (where & when will we find biosignatures with JWST?)
16:16 - Outro
16:45 - Brilliant
18:02 - Bloopers




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👩🏽‍💻 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.


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