Astronomy

A powerful new technique is poised to revolutionize how astronomers observe black holes, by producing sharp, multicolored images that could reveal their dynamic evolution in real time.

"These small galaxies punch well above their weight."

The monsterous 85-mile-wide comet C/2014 UN271 isn't just the largest icy rock in the Oort Cloud, it's the second most distant that is chemically active.

Using the XMM-Newton telescope, astronomers have discovered a vast 23 million light-year-wide tendril connecting galactic clusters and containing much of the universe's missing matter.

NASA's Terra satellite captured huge chunks of sea ice breaking apart in Canada's Amundsen Gulf.

"We know that daytime migratory insects use the sun, so testing the starry sky seemed an obvious thing to try."

The prolific flare factory doesn't look like stopping anytime soon.

A stunning new image of the Sculptor Galaxy, located 11 million light-years away, painted in thousands of colors by the VLT, reveals the intricacies of galactic systems.

Satellite streaks are a blight on astronomy. How much are observations by the Vera Rubin super telescope going to suffer from this contamination?

Supermassive black holes that seem too large to exist in the early universe may have grown from primordial black holes formed in the first second after the Big Bang.