We may find alien life on a planet unlike any place in our Solar System — and we may find it soon. A huge planet called K2-18b has methane and carbon dioxide mixed in with its mostly hydrogen ...

Scientists think they've spied an alien world that lost its atmosphere — then conjured itself a new one. That's according to a new analysis of Hubble Space Telescope observations gathered in 2017 of a ...

K2-18 b is one strange place. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Scientists have detected water vapor in the atmosphere of K2-18 b, ...