A new analysis suggests that our galaxy may have collided with another recently discovered dwarf galaxy called Antlia 2.

Scientists have long believed that the formation of a quasar in a galaxy would spell the end of star formation there. A new analysis suggests that may not be the case.

We can’t see this black hole, but observations have detected some of its effects like a sphere of superheated gas. A new study has now revealed the other side of the coin, a ring of comparatively cool gas around the black hole.

What we observe today may have traveled beyond our ability to see it or no longer exist at all. That’s why it’s especially interesting when scientists discover parts of our distant universe that appear to be moving closer over time.

Scientists have made new observations of the Sun’s atmosphere that reveal new information about the instability of its plasma. This information may turn out to be the key to generating power through nuclear fusion.

Haumea is too distant to observe the rings directly, but researchers with the São Paulo Research Foundation have now worked out the characteristics of Haumea’s rings with a simulation.

Scientists have spotted one of the rarest stellar phenomena thought to exist — a pair of white dwarf stars that collided and fused, without exploding into a supernova.

Astronomers have discovered an ancient Population II star with very little metal — but a specific spike in zinc that can only be explained by an asymmetrical supernova explosion.

Astronomers have used data from the Hubble to create the largest, deepest look at the universe ever recorded.

Scientists have long suspected that helium hydride was the first molecule in the universe, but no one has ever detected it in space until now. NASA researchers have spotted helium hydride many light years away in a planetary nebula.