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Astronomy Picture of the Day
Updated: 5 hours 23 min ago

Inside the Coma Cluster of Galaxies

12 hours 23 min ago

Almost every object in the above photograph is a galaxy. Almost every object in the above photograph is a galaxy.


Moon Venus Mars Skyline

12 hours 23 min ago

Taken on February 20, Taken on February 20,


Long Lovejoy and Little Dumbbell

12 hours 23 min ago

Buffeted by the solar wind, Comet Lovejoy's crooked Buffeted by the solar wind, Comet Lovejoy's crooked


Love and War by Moonlight

12 hours 23 min ago

Love and War by Moonlight Love and War by Moonlight


The Rosette Nebula in Hydrogen and Oxygen

12 hours 23 min ago

The Rosette Nebula is not the only cosmic cloud of gas and dust to The Rosette Nebula is not the only cosmic cloud of gas and dust to


Unusual Plumes Above Mars

12 hours 23 min ago

What is creating unusual plumes on Mars? What is creating unusual plumes on Mars?


Lenticular Cloud, Moon, Mars, Venus

12 hours 23 min ago

It is not every day that such an interesting cloud It is not every day that such an interesting cloud


The Milky Way Over the Arizona Toadstools

Sun, 03/01/2015 - 03:42

Which is older -- the rocks you see on the ground or the light you see from the sky? Which is older -- the rocks you see on the ground or the light you see from the sky?


The Dark River to Antares

Sat, 02/28/2015 - 00:42

Connecting the Connecting the


45 Days in the Sun

Fri, 02/27/2015 - 03:42

From January 11 to February 25 2013, a pinhole From January 11 to February 25 2013, a pinhole


An Evening Sky Conjunction

Thu, 02/26/2015 - 06:42

Eight years ago, an evening sky held this lovely Eight years ago, an evening sky held this lovely


Palomar 12

Wed, 02/25/2015 - 02:42

Palomar 12 Palomar 12


Dark Craters and Bright Spots Revealed on Asteroid Ceres

Tue, 02/24/2015 - 05:42

What are those bright spots on asteroid Ceres? What are those bright spots on asteroid Ceres?


Fibrils Flower on the Sun

Mon, 02/23/2015 - 01:42

When does the Sun look like a flower? When does the Sun look like a flower?


M106: A Spiral Galaxy with a Strange Center

Sun, 02/22/2015 - 04:42

What's happening at the center of spiral galaxy M106? What's happening at the center of spiral galaxy M106?


Two Hours Before Neptune

Sat, 02/21/2015 - 00:42

Two hours before closest approach to Two hours before closest approach to


Solar System Portrait

Fri, 02/20/2015 - 03:42

On another On another


Aurora on Ice

Thu, 02/19/2015 - 00:42

Not from a snowglobe, this expansive fisheye Not from a snowglobe, this expansive fisheye


Exploring the Antennae

Wed, 02/18/2015 - 03:42

Some 60 million light-years away in the southerly Some 60 million light-years away in the southerly


M100: A Grand Design Spiral Galaxy

Tue, 02/17/2015 - 06:42

Majestic on a truly cosmic scale, M100 is appropriately known as a Majestic on a truly cosmic scale, M100 is appropriately known as a