Confirmed as an alien comet, new observations have given us a much better idea of how large this interstellar object actually ...

Scientists believe the most likely explanation is that the massive star was in a close orbit with a black hole. Over time, ...

The most striking science photos of the week: including the Perseid meteor shower and glowing underwater wonders.

One of these hot plasma channels tunnels through the heated plasma like a ‘back road’ into the galaxy, seemingly stretching ...

Scientists have discovered a peculiar supernova that may have resulted from a star's misguided attempt to swallow a black hole. The new case, soon to be published in The Astrophysical Journal, ...

Dark matter has remained one of the biggest riddles in modern physics. Astronomers know it must be there as it outweighs visible matter several times over and shapes the growth of galaxies. However, ...

In the search for signs of life on what seemed like a promising little exoplanet, astronomers’ hopes have dimmed.

Astronomers have discovered the most distant confirmed black hole, hidden inside a rare galaxy known as a “Little Red Dot.” Its enormous size and early existence challenge current theories about how ...

Researchers at Max Planck Institute have discovered a mysterious network of interstellar channels connecting Solar System to other star systems.

A black hole’s bizarre "heartbeat" is forcing astronomers to reconsider how these cosmic heavyweights behave.

Astronomers using the Chandra X-ray Observatory and other telescopes "have determined that a giant black hole has destroyed a ...

Astronomers have observed the calamitous result of a star that picked the wrong dance partner. They have documented what ...