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

And now it's 250 million miles away.

NASA's Hubble Space Telescope has captured a rare cosmic moment: a comet breaking apart in real time.

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

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

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

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

One of NASA’s oldest astronomy missions, the Neil Gehrels Swift Observatory, has been out of action for more than a month as ...

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

Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight ...

In a stroke of luck, astronomers saw the comet C/2025 K1 (ATLAS) break into four or five fragments in November after it ...

NASA’s Hubble Space Telescope has captured a rare moment involving the comet C/2025 K1 (ATLAS) as it began breaking apart. Events like this are not of.