Our hopes, fears and expectations for the first nonconsecutive White House term in 132 years.

Astronomers have uncovered the most distant blazar ever discovered, a supermassive black hole with a mass of 700 million suns ...

Found less than a billion years after the Big Bang, these massive objects are upending astronomers’ timeline for how early galaxies formed.

Astronomers are celebrating the completion of a 2.5-billion-pixel panoramic picture of the entire Andromeda Galaxy. The team includes several UC Santa Cruz researchers who made significant ...

Some space conspiracy theories just won't go away.

Messier 31 is located 2.5 million light-years away from Earth and was a much bigger target in the sky than the galaxies ...

The study suggests that the Moon likely formed largely from Earth's mantle material — with minimal involvement from Theia.

Astronomy, always seeking the deepest mysteries of the cosmos, has taken a significant new step with the discovery of three ultra-faint dwarf galaxies. This breakthrough, the result of collaboration ...

A fluffy cluster of stars spilling across the sky may have a secret hidden in its heart: a swarm of over 100 stellar-mass black holes.

Astronomers have detected the most ancient blazar ever observed, originating from the early universe and emitting a beam of ...

Pepper…and Salt ...

In a study published in the Astrophysical Journal, a team of researchers led by Kristen McQuinn, a scientist at the Space ...