A fast-moving star, possibly with an exoplanet, has been detected in the Milky Way, challenging current astrophysical models.

A dazzling display of the Milky Way and a beautiful shot of Chanctonbury Ring are among the winners of this year’s astrophotography competition. This year broke a record since the contest’s inception ...

In a groundbreaking new study, researchers have unveiled the existence of a “cosmic highway”—a pathway of interstellar material from the Alpha Centauri system that may already be linking our solar ...

NASA said the system is thought to be moving at least 1.2 million miler per hour, nearly twice as fast as our solar system.