A star dims its light to less than 97% of its brightness for 9 months before re-brightening. How? Scientists think a giant, ringed object blocked its light.
Tatooine exoplanets - or planets orbiting 2 stars - are rare. And a new study from UC Berkeley says Einstein's general theory of relativity is to blame.
A new analysis of images from the Galileo mission has revealed deposits of ammonia on Europa. It could mean a geologically active crust and habitable ocean.
Spring fireball season is now! The rate of fireballs (bright meteors) often goes up in the Northern Hemisphere by as much as 30% from February through April.
Did we just witness a black hole explode? Astronomers observed a strange particle collide with Earth that could have been the result of a black hole exploding.