The cosmos has served up a gift for a group of scientists who have been searching for one of the most elusive phenomena in ...

Dark matter is an elusive type of matter that does not emit, reflect or absorb light, yet is estimated to account for most of ...

Cosmic dawn galaxies seen by JWST reveal hidden clues about dark matter and keep rival theories about its true nature alive.

With major eclipses, brilliant supermoons, and lineups of five or more planets, 2026 offers something awe-inspiring in every season. Here’s what to watch for.