This faraway, ancient ball of stars may have been captured from another galaxy that passed too close to the Milky Way.

A new study shows that the event that wiped out the dinosaurs caused only a small drop in shark and ray species at the same ...

NASA's IR space scope explores the Milky Way’s most prolific star-forming region, cracking open new secrets of how stars form ...

Though NASA was optimistic about launching four astronauts on a trip around the moon as early as Friday, the space agency is now looking at March after complications during a key preflight test. As it ...

A few days ago, longtime Astronomy magazine contributor Chris Schur sent me the image you see here. It shows the famous Double Cluster in Perseus, also known as NGC 869 and NGC 884. Most images of ...

The Moon passes 4° north of Jupiter this evening at 9 P.M. EST. The pair is visible most of the night in the central region of Gemini. Early in the evening, the nearly Full Moon hangs to the upper ...

Their new study shows that Earth’s massive drop in temperature after the dinosaurs went extinct could have been caused by a large drop in calcium levels in the ocean. The study showed that the ...

Edward Charles Pickering graduated summa cum laude from Lawrence Scientific School at the age of 19, beginning a position as a physics professor at MIT a year later. During his 10 years there, he ...

Uranus stands stationary at midnight EST. Located in the constellation Taurus, the ice giant is visible after sunset and sets around 2 A.M. local time. Shining at magnitude 5.7, Uranus generally ...

With 274 confirmed moons as of March of 2025, Saturn is the solar system planet with the most natural satellites. By 1789, though, only five had been spotted: Titan by Christiaan Huygens in 1655, and ...

2026 is lining up to be a great year for skywatchers. Our comprehensive guide, curated by Astronomy‘s observing experts, lists everything you need to know to catch eclipses, meteor showers, planetary ...

Saturn’s four brightest moons are lined up for ideal viewing this evening. You can catch the ringed planet for a few hours after sunset, as it slowly sinks toward the western horizon. Around 7 P.M.