Anyone tempted to ascribe the nighttime sightings of aircraft to alien intelligence ought to be dissuaded by the vast scale ...

A strange star has revealed to astronomers a mysterious past — one that involves the merger of two ancient suns.

The Sun reaches its southernmost point, the Ursid meteor shower peaks, and the Christmas Tree Cluster glitters in the sky ...

Heat from tidal forces remelted the Moon’s crust, says new reesarch, which may explain why the Moon is older than some ...

Despite systemic barriers, Young persisted in the face of adversity. Her legacy continues today, but there is much work still ...

In a letter organized by a public interest group, 120 researchers have expressed concern about the number of satellites in ...

Binary stars can’t survive long near the Milky Way’s supermassive black hole — but for the first time, astronomers have managed to spot one.

The seven stars that make up this famous asterism are part of Ursa Major the Great Bear. And they offer a lot more than meets the eye.

All but one of the Apollo program’s used lunar modules either crashed into the Moon’s surface or burned up in Earth’s ...

In this episode, Dave Eicher invites you to observe the nearly full Moon as it passes Mars on the evening of December 17.

In late December, you can witness a celestial conjunction as Mars passes close to the Beehive Cluster in Cancer the Crab.