The Andromeda Galaxy, our Milky Way’s colossal neighbor, lies 2.5 million light-years away yet shines visibly in dark skies.

How big is the universe? In this video, we embark on a journey from our solar system to the edge of the observable cosmos.

With a spectacular array of galaxies and nebulas, the ambitious telescope begins its 10-year survey of the cosmos.

A team led by the Italian National Institute for Astrophysics discovered the most distant known fossil galaxy — a relic of ...

A group of Manitoba researchers were involved behind the scenes of an international effort that this week revealed the first ...

If black holes weren't terrifying enough, two especially large ones are merging together, experts have discovered.

Roman’s deep, time-lapse survey may reveal a hundred thousand stellar cataclysms, from distant Type Ia supernovae to the self ...

Recent studies indicate that there could be as many as 100 galaxies, too dim to be seen with current technological ...

Scientists predict one of the major surveys by NASA’s upcoming Nancy Grace Roman Space Telescope may reveal around 100,000 ...

Hubble's new image of galaxy cluster Abell 209 reveals over 100 galaxies and gravitational lensing effects from dark matter ...

Dark matter is one of nature's most confounding mysteries. It keeps particle physicists up at night and cosmologists glued to ...

"Dark matter could be captured by stars and accumulate inside them. If that happens, it might also interact with itself and ...