WASHINGTON (Reuters) -Astronomers have spotted a cosmic mismatch that has left them perplexed - a really big planet orbiting a really small star. The discovery defies current understanding of how ...

Scientists have identified three Earth-sized planets orbiting two stars in the TOI-2267 system. Remarkably, planets transit around both stars — a first in astronomy. The system’s compact, cold nature ...

Astronomers have identified a vast, cotton-candy–light “super‑puff” world that loops around its star in a wildly misaligned orbit, defying the tidy rules that usually govern planetary systems. Instead ...

Astronomers have long wondered why planets orbiting two stars, like the iconic Tatooine in Star Wars, are so rare. Most stars form with planets, and a large fraction are born in binary systems.