NASA's Voyager 2 spacecraft captured dark streaks produced by geysers visible on the icy surface of Triton's south polar ...

On Sunday night, March 26, Ceres smiles for the camera right in front of a galaxy 55 million light-years away. On Sunday night, March 26, the dwarf planet Ceres will pass directly in front of the ...

Watch live online as the dwarf planet Ceres swoops in front of the 'grand design' spiral galaxy Messier 100 this weekend. When you purchase through links on our site, we may earn an affiliate ...

M51 is a grand-design spiral galaxy about 25 million light-years away from Earth and boasts very well-developed arms. By Laura Baisas Published Aug 29, 2023 4:00 PM EDT Get the Popular Science daily ...

Hubble has captured yet another mesmerizing image of a spiral galaxy. This time, though, the space telescope also captured a shot of a nearby star that shines just as brightly as its galactic ...

NASA’s “What’s Up” guide for October 2025 outlines the month’s best celestial events, including Moon–planet pairings, meteor showers, and stargazing tips for observers worldwide.

A distant star system has Milky Way-like spiral arms orbiting it. New research suggests a giant planet may be to blame. When you purchase through links on our site, we may earn an affiliate commission ...

Check out Astronomy.com’s interactive StarDome to see an accurate map of your sky. This tool will help you locate this week’s targets. This week’s small-telescope target is open cluster NGC 6067 in ...

When you imagine a galaxy like our Milky Way, you’re probably picturing a swirl shape with arms reaching out from a central point. These spiral arms are a classic feature of many galaxies. Similar ...