The search for life beyond Earth has followed a familiar logic: find a rocky planet orbiting in the habitable zone, where ...

If our Moon suddenly vanished, Earth would already face dramatic consequences. But replacing it with entire alien worlds would take things to an entirely different level. Some of these exoplanets ...

Scientists reveal how waves behave on alien planets, from towering methane seas on Titan to nearly still lava oceans on ...

We have no idea what kind of life may exist on other planets, so it’s hard to know what to look for. Proxima Kósmos imagines ...

Prefer Newsweek on Google to see more of our trusted coverage when you search. One of the most fundamental questions is "are we alone?" The answer to that question would shake the foundations of our ...

When worlds collide…suns act squirrely. Astronomers have witnessed a rare and violent cosmic crash between two planets, and they say the fallout could teach us about the formation of our world. The ...

An exoplanetary system about 116 light-years from Earth could flip the script on how planets form, according to researchers who discovered it using telescopes from NASA and the European Space Agency, ...