Spacecraft are not like the starships you see in movies. There is no endless supply of dilithium or hypermatter that lets you ...

How frequently does a traveler from another star system sweep through our galactic neighborhood, and astronomers rush to the telescope? Not until recently was the answer: hardly ever. In fewer than ...

Astronomers have confirmed the discovery of an "interstellar object" named 3I/Atlas passing through the inner solar system.

A new investigation into old Kepler data has revealed that a planetary system once thought to house zero planets actually has ...