exoplanet

New analysis casts doubt on ‘biosignatures’ found on planet K2-18b

Researchers using data from the James Webb Space Telescope recently announced they had detected biosignature gases on planet K2-18b. A new analysis of the same data casts doubt on the earlier findings

Is this a hint of life on another world, or just a lot of hot air?

The James Webb Space Telescope may have detected life-associated gas in the atmosphere of a far-off planet. The news is being greeted with both enthusiasm and skepticism.