What would signal life on another planet?

2023/09/12 16:50

Astronomers have long debated what kind of chemistry might serve as a bona fide alien biosignature. With the launch of the James Webb Space Telescope, those ideas may be put to the test.

In June, astronomers reported a disappointing discovery: The James Webb Space Telescope failed to find a thick atmosphere around the rocky planet TRAPPIST-1 C, an exoplanet in one of the most tantalizing planetary systems in the search for alien life.

https://knowablemagazine.org/article/physical-world/...