this post was submitted on 13 Sep 2023
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[–] [email protected] 5 points 1 year ago (2 children)

Hasn't this happened before?

[–] [email protected] 7 points 1 year ago (2 children)

Yeah they picked up the same reading on Venus which was later disproved. The headline is also somewhat misleading in that this planet is 9 times larger than earth (not sure what it’s mass is) so it wouldn’t accommodate humans but still it would be incredible to reconfirm results

[–] [email protected] 16 points 1 year ago* (last edited 1 year ago)

Different molecule on Venus. That was phosphene.

This time they found Dimethyl sulfide

[–] [email protected] 3 points 1 year ago (2 children)

A planet 9 times the size of earth could still potentially host human life, we'd need to live high up in the sky so the gravity would be lower, but it's possible

[–] [email protected] 4 points 1 year ago (1 children)

That's not how gravity works.

[–] [email protected] 2 points 1 year ago (2 children)

Gravity becomes lower at higher altitudes, or what do you mean?

[–] [email protected] 3 points 1 year ago* (last edited 1 year ago)

The bigger aplanet, the further away its surface from its center of mass, which decreases gravity. A planet's surface gravity is mostly affected by its mass and density. This is why Saturn, despite being much bigger than Earth, still have roughly the same surface garvity.

[–] [email protected] 0 points 1 year ago

The planet is pretty close to it's sun.

[–] [email protected] 0 points 1 year ago* (last edited 1 year ago)

Yes.

Phosphene was thought to be found on Venus which can be produced by life or under conditions of a gas giant. However, the results are disputed.

Methane has been detected on Mars but results can be explained by non-life processes.