That means if aliens were to exist, and they were located some 66 million light-years from Earth, they’d theoretically still ...

Big telescopes feature some of the finest and most precise mirrors in the world. So when one gets dirty, what happens? The European Southern Observatory (ESO) operates some of the most powerful ...

The Hubble Space Telescope has glimpsed the most distant single star it's ever observed, glimmering 28 billion light-years away. And the star could be between 50 to 500 times more massive than our sun ...

Astronomers used AI to search 35 years of Hubble data and discovered over 1,300 rare cosmic anomalies hidden in plain sight.

Astronomer Robert Kirshner investigates some of the universe’s biggest questions: What happens when a star explodes? Is the universe still expanding? He recently added a new mystery to the list: Is ...

The James Webb Space Telescope (JWST) is the next big telescope at NASA. More ambitious than the Hubble Space Telescope, its predecessor, the JWST will be placed by NASA at a stable Lagrange point ...

As the Vera C. Rubin Observatory surveys the night sky, astrophysicists expect to unlock the secrets of dark matter, dark energy and cosmic phenomena that go “bang!” As the Vera C. Rubin Observatory ...