Andromeda Galaxy

Beautiful shot of M31 - closest large spiral galaxy to our Milky Way - by our friend Tom Wildoner.

Fav photos of August 31 moon, Saturn and Mars

Did you see the moon near the planets Saturn and Mars Sunday evening? Thanks to all EarthSky friends who captured and shared these beautiful images.

Purple aurora

Very beautiful aurora over Östersund, Sweden. We love aurora season!

Sea clouds at sunset

Isn't this gorgeous? Clouds at sunset over Italy's Ligurian Sea by Maranatha.it Photography.

Milky Way over Utah, and a moonlit blue hour

A crescent moon - just set below high, hardened sand dunes in Goblin Valley State Park in Utah - creates a kind of "blue hour" glow in the sky.

Moon, Jupiter, Venus over Hong Kong

It was a glorious weekend for planet-watching. The moon waned and appeared lower in the east before dawn each day, sweeping past Venus and Jupiter.

Aurora and reflection

In honor of the return of aurora season to Earth's northerly latitudes, here's the aurora borealis - northern lights - above Norway's Lyngen Alps.

August 19 aurora from space and Earth

One of the first auroras of the 2014 autumn season appeared last night at northerly latitudes. Astronaut Reid Wiseman caught it from space. Photographer Göran Strand caught it from Sweden.

Intense rainbow over Northern Ireland

Glenn Miles sat in his truck and waited out a rainstorm, then captured the most intense rainbow he'd ever seen.

Great Venus and Jupiter conjunction of 2014

Venus and Jupiter are the brightest planets! Look east before dawn ... closest planet-planet conjunction of 2014 August 18. Dazzling near moon August 22 and 23.