Planet hunters have grown used to strange worlds, but a handful of discoveries now point to something even more radical: ...

Can planets orbiting M dwarf stars become habitable, or does the star’s activity prevent it? This is what a recent study ...

Thousands of exoplanets have been found, but only a few stand out as truly Earth-like. These 16 may be the most promising ...

Those astronauts are flying on the Shenzhou 21 mission, which arrived at Tiangong on Halloween night. But the spacecraft they ...

NASA's upcoming Nancy Grace Roman Space Telescope is set to surpass initial predictions, capable of measuring seismic waves across over 300,000 red giant stars.

The goal of the Thirty Metre Telescope project is to peer deeper into the cosmos than ever before, studying black holes, ...

Eta Cassiopeiae, a nearby double star system, may host stable Earth-sized planets. Its lack of giant exoplanets makes it ...

Shenzhou 22 will carry home the three astronauts of the Shenzhou 21 mission, who had been without a lifeboat for 10 days.