moon

Tonight's full Snow Moon will have a royal companion as it rises alongside Regulus, a star nicknamed "Heart of the Lion", in time for Valentine's Day.

A French astrophotographer recently snapped shots of the moon, Venus, Mars, Jupiter, Saturn, Uranus and Neptune in a single evening, and rearranged them to create a striking composite image. Each "planetary parade" member was captured with the same magnification, meaning they are perfectly scaled.

Wrinkle ridges that formed in the past 160 million years suggest recent geological activity on the moon.

Mars will appear to make an ultraclose approach to the moon on Sunday, after Jupiter had a turn earlier this week. Here's how to get the best view of the rare conjunction.

A French astrophotographer has captured a stunning photo of Venus and the moon shining above the Eiffel Tower in Paris, thanks to a rare "parade of planets."

NASA's Juno spacecraft has discovered a giant volcanic hot spot on the surface of Jupiter's hellish moon Io. The eruptions in this area are chucking out six times the energy being produced by all Earth's power stations, researchers say.

A new study implies that in the past, moons in our solar system may have had rings just like planets do — deepening the mystery of why no ringed moons exist today.

Tonight (Jan. 13), bright Mars will disappear behind the full Wolf Moon for several hours before reappearing on the other side. It's the only lunar occultation of Mars visible from the U.S. this year. Here's how to get the most out of it.

As Mars approaches opposition this week, it will become a dazzling spectacle in the night sky. See it at its best now, or wait until 2027.

The Wolf Moon — the first full moon of the year and of winter in the Northern Hemisphere — rises tonight, but will be best seen on Jan. 14, shortly after it has occulted Mars.