Scientists now have direct evidence that a planet — not just failed stars — can rove the galaxy after a violent expulsion from its orbit. - NASA / JPL-Caltech / R. Hurt illustration Astronomers have ...

Astronomers have detected a rogue planet roughly the size of Saturn wandering alone through the Milky Way. Unlike most planets, it does not orbit a star but drifts through space on its own. This ...

Scientists uncover a new reason for fewer planets around twin stars. Einstein's theory of general relativity shows that close ...

An international team of astronomers has discovered a distant planetary system that challenges long-standing theories of how planets form. Across our galaxy, astronomers routinely observe a ...

– January 7, 2026 (London time) – One of the biggest recent surprises in astronomy is the discovery that most stars like the Sun harbor a planet between the size of Earth and Neptune within the orbit ...

Astronomers have confirmed for the first time with direct evidence that a lone, starless world is actually drifting through the Milky Way. Though scientists have documented a dozen of these so-called ...