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Astronomy Picture of the Day
Updated: 6 hours 4 min ago

A Dust Jet from the Surface of Comet 67P

Sun, 12/11/2017 - 08:00

Where do comet tails come from? Where do comet tails come from?


A Year of Full Moons

Sat, 11/11/2017 - 06:00

Do all full moons look the same? Do all full moons look the same?


NGC 891 vs Abell 347

Fri, 03/11/2017 - 13:00

Distant galaxies lie beyond a foreground of spiky Distant galaxies lie beyond a foreground of spiky


Thor's Helmet Emission Nebula

Fri, 03/11/2017 - 13:00

This helmet-shaped cosmic cloud with This helmet-shaped cosmic cloud with


Dark Matter in a Simulated Universe

Fri, 03/11/2017 - 13:00

Is our universe haunted? Is our universe haunted?


Orionid Meteors from Orion

Fri, 03/11/2017 - 13:00

Meteors have been shooting out from the constellation of Orion.  Meteors have been shooting out from the constellation of Orion.


Night on a Spooky Planet

Fri, 03/11/2017 - 13:00

What spooky planet is this? What spooky planet is this?


NGC 6369: The Little Ghost Nebula

Fri, 03/11/2017 - 13:00

 The Little Ghost Nebula NGC 6369: The Little Ghost Nebula


Mirach's Ghost

Thu, 02/11/2017 - 11:00

Mirach's Ghost Mirach's Ghost


NGC 7635: Bubble in a Cosmic Sea

Wed, 01/11/2017 - 09:00

Adrift in a cosmic sea of Adrift in a cosmic sea of


Marius Hills: Holes in the Moon

Tue, 31/10/2017 - 07:00

Could humans live beneath the surface of the Moon? Could humans live beneath the surface of the Moon?


Where Your Elements Came From

Mon, 30/10/2017 - 05:00

The hydrogen in your body, present in every molecule of water, came from the The hydrogen in your body, present in every molecule of water, came from the


NGC 4993: The Galactic Home of an Historic Explosion

Sun, 29/10/2017 - 16:00

That reddish dot -- it wasn't there before. That reddish dot -- it wasn't there before.


Two Black Holes Dancing in 3C 75

Sat, 28/10/2017 - 14:00

What's happening at the center of active galaxy 3C 75? What's happening at the center of active galaxy 3C 75?


Lynds Dark Nebula 183

Fri, 27/10/2017 - 12:00

Lynds Dark Nebula 183 Lynds Dark Nebula 183


A Beautiful Trifid

Thu, 26/10/2017 - 10:00

The beautiful The beautiful


M51: The Whirlpool Galaxy

Wed, 25/10/2017 - 08:00

 The Whirlpool Galaxy M51: The Whirlpool Galaxy


Stars and Dust in Corona Australis

Tue, 24/10/2017 - 06:00

Blue dust clouds and young, energetic stars inhabit Blue dust clouds and young, energetic stars inhabit


Haumea of the Outer Solar System

Mon, 23/10/2017 - 17:00

One of the strangest objects in the outer Solar System has recently been found to have a ring. One of the strangest objects in the outer Solar System has recently been found to have a ring.


GW170817: A Spectacular Multiradiation

Sun, 22/10/2017 - 15:00

Both gravitational and electromagnetic radiations have been detected in Both gravitational and electromagnetic radiations have been detected in