Fourth anniversaries aren’t often causes for celebration. But in the case of the James Webb Space Telescope (JWST), which ...

Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight Center. Credit: NASA's Goddard Space Flight Center Producer & Director: James ...

From an interstellar comet to breathtaking auroras and from brand-new rockets to iconic space telescopes, here are some of our favorite images from the cosmos in 2025 ...

See asteroid Dimorphous, pre- and post-impact, in this time-lapse of Hubble Space Telescope imagery. The space rock was ...

This mash-up of data from the James Webb Space Telescope and the Chandra X-ray Observatory reveals two galaxies mid-collision ...

NASA's Hubble Space Telescope has gotten a rare peek at the aftermath of two cosmic collisions — and helped scientists solve ...

Everyone's favorite interstellar comet, 3I/ATLAS, flew past Earth overnight, coming within about 168 million miles (270 million kilometers) of our planet.

Today is one astronomers, stargazers and alien conspiracy theorists have been waiting for: interstellar comet 3I/ATLAS is as ...

The interstellar comet 3I/ATLAS made its closest approach to Earth today (Dec. 19, 2025). Here's the latest news you need to ...

Today is one astronomers, stargazers and alien conspiracy theorists have been waiting for: interstellar comet 3I/ATLAS is as ...

Interstellar comet 3I/ATLAS made its closest approach to Earth early on Friday, Dec. 19. While it didn't come close enough to ...

On December 19, avid skywatchers can catch a glimpse of the mysterious visitor through powerful binoculars or a telescope when it’s around 170 million miles from our home planet ...