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

According to the 'Big Crunch' theory, the universe will eventually collapse in on itself in a final climactic implosion, and ...

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

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

Researchers will mine data from NASA’s Nancy Grace Roman Space Telescope, which will survey the same areas of the sky every ...

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

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

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

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

These Galactic Clusters Smashed Into Each Other. Giant Bow Shocks Suggest They're About To Go For Round 2 A mystery surrounds how these bow shocks are as far away from the galaxy merger as they are.

A massive clump of dark matter in the Perseus galaxy cluster is linked to its core by a bridge of dark matter, evidence of a history of mergers.