An inconspicuous comet

Many hoped Comet 252P/LINEAR would become visible to the eye. It has, but only barely. Enjoy photos from the few, the proud, who've captured this comet on film!

Rainbows around the world

Images of rainbows from all over the world taken by EarthSky's Facebook friends. Beautiful!

Beautiful, enormous moon halo

Ring around the moon over Horsham, Australia on April 13, 2016. Photo by Lynton Brown.

Giant sunspot turns toward Earth

Sun-watchers have had their eye on giant sunspot AR2529. Check out these photos from the EarthSky community. Aurora alert for April 13!

Mars rover up high, spies a dust devil

After making the steep-ever climb of any rover on Mars, Opportunity looked back along its own tracks toward a swirling Martian dust devil in the valley below.

See it! Star Aldebaran near the moon

On Sunday, as seen from North America, the moon "occulted" or passed in front of the star Aldebaran. Many then saw Aldebaran near the moon Sunday evening.

Crab Nebula

Visible only through telescopes, the Crab Nebula - aka M1 - is all that remains of a cataclysmic supernova explosion that lit the daytime sky in A.D. 1054.

Moon in front of Earth

It's the fully illuminated far side of the moon - the side not visible from Earth - set against the fully illuminated (dayside) of the Earth.

Snow goose moon

To our knowledge, Snow Goose Moon isn't one of the commonly used moon names. But, at least in some parts of the world, it should be.

Check it out! Full-sphere astrophotos

A new camera records a 360-degree full-sphere panorama with only one single shot. It's bound to set off a small revolution in astrophotography, says Project Nightflight.