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

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

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

Across modern astronomy, the most striking pattern is not a single spectacular discovery but a drumbeat of similar clues.

Lunar samples serve as a critical link between orbital remote sensing and ground-truth measurements. Previous sample-return ...