NASA’s Chandra Observatory reveals a 25-year time-lapse of Kepler’s Supernova Remnant. Glowing debris expands at different ...

Gamma rays are invisible and ultra-powerful forms of light. They are the most energetic source of radiation known in the ...

For every galaxy that's visible from Earth, there are nine smaller ones that we can't see, even with all the technology we've ...

Astronomers have created a detailed forecast of where they expect to observe future stellar explosions in a nearby galaxy, ...

"This was many times more energetic than any similar event and more than any known explosion powered by the collapse of a ...

A new study reveals a rare-breaking white dwarf star, dubbed RXJ0528+2838, that is somehow generating a rainbow-like "bow ...

It's the last clearly observed supernova in the Milky Way, Gassel said.

If scientists are able to inspect it in person, and they find that Mars was indeed once alive with microbes, we would know ...

The James Webb Space Telescope has captured stunning images of Sagittarius B2, a massive molecular cloud near the Milky Way's center. This region, despite holding only 10% of the galactic center's gas ...

Ex-Google CEO Eric Schmidt aims to fly the first private space telescope by 2029. Will it pave the way for more private ...

Bigger than Hubble and launching as soon as 2029, the Lazuli Space Observatory would be the first-ever full-scale private ...

Hubble reveals a chaotic spiral galaxy whose close encounter with a neighbor has ignited a spectacular burst of star birth.