Last best look at Pluto’s farside

A cool New Horizons image of the side of Pluto the spacecraft won't see as it sweeps past. Likely our last, best look for decades to come!

Rainbow over the desert

After a summertime desert shower ...

Noctilucent clouds and rising moon

These clouds - sometimes called night-shining clouds - are thought to be made of ice crystals that form on fine dust particles from meteors.

Best photos: Venus and Jupiter June 2015

People around the world are capturing the very bright planets Venus and Jupiter as they draw closer in the west after sunset this month.

Milky Way over Maine lighthouse

The Milky Way over the Atlantic at the Pemaquid Point lighthouse in Bristol, Maine.

Dawn’s early light

Beautiful July dawn in northeast Alaska's Thompson Pass.

Galactic fireworks

Here's a composite image of Messier 106, known for its strange spiral arms, located 23 million light years away.

Mercury and more before dawn

Ken Christison caught Mercury in the east before dawn this week. He couldn't see it with the eye that day, but you might see it, if you look. Here's how.

Sunset over Greece

A beautiful sunset on one of the long days of summer.

Big Dipper before dawn

In the month of June, the Big Dipper is low in the sky before dawn.