"We were surprised by the streams of light that were visible near the center of the galaxies, as nothing similar has been ...

Comet SWAN25F, a newly spotted celestial visitor, races toward a fiery encounter with the Sun. Catch its green glow near Andromeda before it possibly vanishes forever!

Comet SWAN25F, which was first seen by ESA's SOHO satellite, is thrilling skygazers with its striking green color. It is visible just before dawn on t ...

Up until recently, astronomy was reliant entirely on electromagnetic waves. While that changed with the confirmation of ...

A new trail in this southern Arizona city plots the most visitor-friendly astronomy stops—and there are plenty to choose from ...

A new comet has been discovered. Now getting closer to the sun and expected to brighten over the next few weeks, comet C/2025 ...

A new comet, officially designated SWAN25F, has entered the morning skies of the Northern Hemisphere, and it’s already visible with binoculars. The comet was first spotted on April 1, 2025, by ...

The striking Comet C/2025 F2 (SWAN) photograph was captured by astrophotographer Josh Dury at 4:50 a.m. local time on April 9 ...

"A supercomputer simulation shows many galaxies merging over time. The parts of galaxies we can see are glowing stars forming from gas in their central parts. Visualizations like these inform ...

This April, the skies put on a dazzling show – watch planets like Jupiter, Venus, and Mars glide across morning and evening ...

Point your eyes to the sky above the northeastern horizon in the Northern Hemisphere for the best chance to spot comet ...

When I was a kid, I was fascinated by the Powers of 10 video, which came out in the 1970s. Perhaps you remember it, with the ...