123

Webb Discovers Methane, Carbon Dioxide in Atmosphere of K2-18 b (www.nasa.gov)

submitted 1 year ago by very_well_lost@lemmy.world to c/space@lemmy.world

11 comments fedilink hide all child comments

A new investigation with NASA’s James Webb Space Telescope into K2-18 b, an exoplanet 8.6 times as massive as Earth, has revealed the presence of carbon-bearing molecules including methane and carbon dioxide. Webb’s discovery adds to recent studies suggesting that K2-18 b could be a Hycean exoplanet, one which has the potential to possess a hydrogen-rich atmosphere and a water ocean-covered surface.

you are viewing a single comment's thread
view the rest of the comments

[-] sebinspace@lemmy.world 24 points 1 year ago

IIRC methane isn’t exclusive to biological processes, but coexisting with carbon dioxide makes it highly unlikely without biological processes

[-] alternative_factor@kbin.social 10 points 1 year ago* (last edited 1 year ago)

Yes and even if it wasn't from biological processes those conditions are livable enough for microbial organisms (anaerobic methane oxidation). If dimethyl sulfide is there than yup that's some good shit right there.
https://en.wikipedia.org/wiki/Anaerobic_oxidation_of_methane

Of course the actual temperatures of things there are up in the air, but if I had a spaceship I'd go there this instant.

[-] NocturnalMorning@lemmy.world 8 points 1 year ago

Stupid physics always getting in the way of my childhood fantasy of being a space trucker.

[-] verity_kindle@sh.itjust.works 2 points 1 year ago

Come play Eve, 99% of us are cosplaying Lone Starr and Barff, basically.

[-] n00b001@lemmy.world 6 points 1 year ago

"I'd go there this instant"

1000 years at 10% the speed of light

[-] alternative_factor@kbin.social 4 points 1 year ago

I mean a TARDIS, obviously!

this post was submitted on 12 Sep 2023

123 points (99.2% liked)

Space

8345 readers

317 users here now

Share & discuss informative content on: Astrophysics, Cosmology, Space Exploration, Planetary Science and Astrobiology.

Rules

Be respectful and inclusive.
No harassment, hate speech, or trolling.
Engage in constructive discussions.
Share relevant content.
Follow guidelines and moderators' instructions.
Use appropriate language and tone.
Report violations.
Foster a continuous learning environment.

Picture of the Day

The Busy Center of the Lagoon Nebula

Related Communities

🔭 Science

🚀 Engineering

🌌 Art and Photography