A star thousands of times larger than the Sun just underwent a dramatic transformation that's a prelude to catastrophe.

The star system has been nicknamed the “Moth” because of its wing-like disk, visible in infrared observations, of leftover ...

Created by the solar wind — a stream of charged particles constantly pouring out from the sun — the heliosphere acts as a ...

Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar ...

The Vera C. Rubin Observatory sent scientists nearly 1 million astronomy alerts in one night, showing off changes in the sky. Eventually, the telescope is expected to reach 7 million alerts per night.

NASA said Webb observed PMR 1, nicknamed the “Exposed Cranium” nebula, in both near-infrared with NIRCam and mid-infrared with MIRI, revealing a brain-like interior divided by a dark vertical lane.

The findings, published on February 12 in Science, are stirring excitement. For the first time, astronomers can trace step by step how some stars vanish into black holes, while others explode in ...

For years, cosmologists have argued over a simple question with an awkward answer: How fast is the universe expanding right ...

In the latest footage captured by the James Webb Telescope, a nebula has been revealed surrounding a dying star.

NASA has detected a precursor or progenitor to a supernova for the first time – and it's all thanks to old photos.

NASA has detected a precursor or progenitor to a supernova for the first time – and it's all thanks to old photos. Researchers have now been able to study some of a supernova's progression by ...

Forty million years ago, a star in a nearby galaxy exploded, spewing material across space and generating a brilliant beacon of light. That light traveled across the cosmos, reaching Earth June 29, ...