Before 3I/ATLAS, the only other confirmed interstellar tourists we've seen were the now-famous, cigar-shaped 'Oumuamua' in ...

Our solar system is on the move, traveling at 828,000 km/h through a galactic structure most people don't know exists. This ...

About 4.5 million years ago, a great cosmic dog kicked past our Solar System – and its effects may still be seen today.

Scientists have been fascinated by the third interstellar object to ever known to visit our solar system that is revealing ...

A surprisingly mature spiral galaxy named Alaknanda has been spotted just 1.5 billion years after the Big Bang—far earlier ...

Astronomers have discovered 53 new supermassive black hole-powered quasars that are blasting out jets of matter at near light ...

It’s invisible, deadly and sucking up every bit of matter in its path. The most massive black hole in the known Universe is ...

Star clusters are of great importance in any galaxy: they are the birthplace of new stars, often containing massive stars of ...

Beyond the local interstellar clouds and their wispy clumps of hydrogen and helium atoms in the form of gas and dust, the ...

Clues about how galaxies like our Milky Way form and evolve and why their stars show surprising chemical patterns have been ...

A surprisingly mature spiral galaxy from cosmic dawn is rewriting ideas about how fast the Universe built its first galaxies.

NASA's Hubble Space Telescope caught a glimpse of 3I/ATLAS – again. Here's a look at the latest photo of the intriguing ...