The James Webb Space Telescope has captured new imagery of supernova remnant Cassiopeia A. It is 11,000 light-years away in the Cassiopeia constellation. Credit: Space.com | footage courtesy: NASA, ...

Imagery of Saturn captured by the James Webb Space Telescope is superimposed over an image captured by Hubble. "Yellows represent bright and warm parts of Saturn’s atmosphere, while the purple areas ...

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

American space agency NASA said the Nancy Grace Roman Space Telescope survived three major assessments of its ability to ...

For practically as long as NASA's Hubble Space Telescope has circled Earth, astronomers have wanted to use it to see a comet ...

These three exoplanets are among the least dense ever found, and all attempts to probe their atmospheres have been blocked by ...

They’re struggling to connect the dots. Scientists are baffled over mysterious dots captured by the James Webb Space Telescope — with some suggesting they could be giant stars from the origins of the ...

The James Webb Space Telescope reveals active volcanoes on Io in unprecedented detail thanks to an innovative technique.

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

Two telescopes have captured images of the Cat's Eye Nebula, revealing how a dying star shed layers of material in violent ...

NASA’s James Webb Space Telescope Optical Telescope Element Pathfinder and Parker Solar Probe models are now on permanent display at the Smithsonian’s Udvar-Hazy Center, providing insight into testing ...

Buying a telescope is a big step, especially if you’re not sure what all those terms — f/ratio, magnification, go-to — mean. So, to eliminate confusion and make sure you understand what you’re buying, ...