Mercury ends its prograde motion and prepares to enter retrograde in Libra the Balance — spot it after sunset if you’re quick ...

Astronomy magazine is proud to announce the winners of its 2026 Astrophotography Contest, presented by Celestron — the ...

Monday, October 26 October’s Full Moon occurs at 12:12 A.M. EDT, shining brightly in both the morning and evening sky. The ...

The solar system’s most distant planet shares the sky with the nearly Full Moon this evening, with Saturn standing nearby.

Let’s spend tonight with the Little Gem, a planetary nebula also cataloged as NGC 6818. It is highest in the sky around 11 P.M., when it is some 35° above the southern horizon. It’s located in the ...

This small martian satellite, the mission target for MMX, is destined to be shredded, changing the Red Planet forever.

The planet Mercury stands 25° east of the Sun. View the solar system’s smallest planet, along with the crescent Moon, in the ...

The Orionid meteor shower peaks this morning — the perfect time to watch for shooting stars, as Earth turns into the ...

The Wild Duck Cluster is flying through the nighttime sky, a great object to check out during lengthening autumn evenings.

Meteors streak past the stars as the First Quarter Moon shines and Iapetus reaches superior conjunction in the sky this week.

Saturn’s small moon Tethys makes another transit across the disk along with its shadow; several other moons are observable as ...

The biggest galaxy in the Deer Lick Group, galaxy NGC 7331 has lots to offer through a telescope, so track it down tonight.