The Milky Way, our home galaxy, is part of a different supercluster called Laniakea, which, at 500 million light-years wide, ...

Don Pettit's birthday "party" brought together Russian recovery teams in Kazakhstan, where it was April 20 (his birthdate).

The first details, screenshots, and trailer have been shared just a few days after an early tease and title announcement via ...

The first was a flyby of the asteroid Dinkinesh on Nov. 1, 2023. This coming Sunday, Lucy will zip past her second target, ...