Astronomers have made a groundbreaking discovery of three Earth-sized planets orbiting within a compact binary star system. This rare configuration, where planets circle two stars simultaneously, ...

Nearby black holes and their stellar companions form an astrophysical rogues’ gallery in this new NASA visualization. Stars born with more than about 20 times the Sun’s mass end their lives as black ...

Stars are the fundamental building blocks of our universe. Most stars host planets, like our sun hosts our solar system, and if you look more broadly, groups of stars make up huge structures such as ...