Best photos of Comet Catalina

Comet C/2013 US10 (Catalina) has been a wonderful target for photographers. See photos of this icy visitor from the depths of space, here. Thanks to all who submitted!

See it! Moon hides bright star Aldebaran

As seen from North America - and westernmost Europe and Africa - moon swept in front of bright star Aldebaran last night. Photos from the EarthSky community here.

Light pillar over Colorado Rockies

Light pillar extending up from a lighted tourist attraction, hidden behind a ridge.

Birdlike cloud over Zimbabwe

Seeing recognizable patterns in unrelated objects is called pareidolia. People love it. Here's a sunset cloud in the shape of a bird, over Africa.

Rare aurora near Earth’s North Pole

Auroras are common at high northern or southern latitudes, but very high latitude auroras are rare. A photographer calls this photo a "once-in-a-lifetime" catch.

Meteor Crater, Arizona, from the air

An aerial view of Meteor Crater, Arizona, the result of an impact 50,000 years ago.

Light pillars and aurora over Montana

In one night, nature photographer John Ashley caught contrasting images of two very different light displays in the sky.

Best photos: Venus and Saturn January 9

A million thanks to you who posted photos on EarthSky pages of Venus and Saturn Saturday morning! Closer than any two planets since 2013 …

Can you spot a third moon?

Three of Saturn's moons appear in this image. Two are easy to spot. Can you find the third? Hint: It's tiny!