Comet 3I/ATLAS recently emerged from behind the glare of the sun to become visible to ground-based telescopes.

Get the latest federal technology news delivered to your inbox. The National Science Foundation and Department of Energy unveiled a new observatory on Monday that features a powerful telescope capable ...

The Red Spider Nebula gives us a possible preview of what might happen to our own Sun in about 5 billion years: as the Sun runs out of fuel, it may also swell into a red giant, shed its outer layers, ...

The Hubble Space Telescope is known for its incredible photos of outer space, but this maybe the happiest image it's captured. The galaxy cluster SDSS J1038+4849 appears to be smiling for the camera!

NASA engineers have successfully completed testing on one half of the Nancy Grace Roman Space Telescope — a key step in making sure this future observatory will perform as expected once it reaches ...

For the first time, astronomers confirmed a massive expulsion of plasma from a star other than the sun. A burping star about ...