Nearly a millennium ago, astronomers witnessed a brilliant new star blazing in the sky—a supernova so bright it was visible ...

And now it's 250 million miles away.

Learn about the breakup and bright outbursts of comet K1, caught by the Hubble Space Telescope on accident.

NASA’s Hubble Space Telescope revisits the Crab Nebula, showing the movement of filaments and changes in gas composition over ...

NASA's Hubble Telescope captured the rare phenomenon of a comet breaking apart, catching scientists off guard until they saw ...

This March 16, 2026, image from NASA's Hubble Space Telescope and the James Webb Space Telescope takes a closer look at the ...

A last-minute target switch led researchers to Comet C/2025 K1 (ATLAS), which Hubble then watched split into at least four ...

Hubble Space Telescope observations of white dwarf star G238-44 has shown that it is "consuming both rocky-metallic and icy ...

"Sometimes the best science happens by accident,” Co-investigator John Noonan, a research professor in the Department of ...

The Hubble Space Telescope celebrates 36 years of incredible discoveries, stunning imagery, and a lasting impact on astronomy.

In an incredibly lucky cosmic accident, NASA’s Hubble Space Telescope captured a comet breaking apart in real time—something ...

C/2025 K1 (ATLAS) was on its way out of the solar system when it did the fateful thing that many comets do. Reading time 3 ...