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Astronomy Pictures

Earth and Moon from MESSENGER

September 2, 2010

What does Earth look like from the planet Mercury?
The robotic spacecraft
MESSENGER
found out as it looked toward [...]

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The Annotated Galactic Center

September 1, 2010

The sky toward the
center of our Galaxy is filled with a wide variety of
celestial wonders,
many of [...]

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Comanche Outcrop on Mars Indicates Hospitable Past

August 31, 2010

Could life once have survived on Mars?
Today, neither
animal nor
plant life from
Earth could survive for very long [...]

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The Local Fluff

August 30, 2010

The stars are not alone.
In the disk of our
Milky Way Galaxy
about 10 percent of [...]

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Hole in the Sun

August 29, 2010

This ominous, dark shape sprawling across the face of the Sun
is a coronal hole –
a low [...]

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Brighter Than Mars

August 28, 2010

Even though you may have just read an email
claiming Mars will be incredibly bright tonight,
the brightest [...]

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M27: Not a Comet

August 27, 2010

While hunting for comets in the skies above 18th century France,
astronomer Charles Messier
diligently kept a list [...]

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HD 10180: Richest Yet Planetary System Discovered

August 26, 2010

Do other rich planetary systems exist?
Our Solar System has the most planets of any known star, [...]

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Galaxy Cluster Abell 1689 Magnifies the Dark Universe

August 25, 2010

What’s the matter with this cluster of galaxies?
To find out what forms matter takes in the
Abell [...]

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A Milky Way Shadow at Loch Ard Gorge

August 24, 2010

Have you ever seen the Milky Way’s glow create shadows?
To do so, conditions need to be [...]

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Hoag’s Object: A Strange Ring Galaxy

August 23, 2010

Is this one galaxy or two?
This question came to light in 1950 when astronomer
Art [...]

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Perseid Storm

August 22, 2010

Storms on the distant horizon and comet dust raining through the
heavens above are combined in this [...]

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NGC 1365: Majestic Island Universe

August 21, 2010

Barred spiral galaxy
NGC 1365 is truly a majestic
island universe some 200,000
light-years across.
Located a mere 60 million [...]

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Pelican Nebula Close-up

August 20, 2010

The prominent ridge of emission featured in
this intensely
colorful skyscape is designated IC 5067.
Part of a larger
emission
nebula [...]

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Crescent Moon and Planets Over Portugal

August 19, 2010

Sometimes, it’s fun to share the sky.
Although it might appear that the two
sky enthusiasts on the [...]

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NGC 4755: A Jewel Box of Stars

August 18, 2010

The great variety of star colors in this
open cluster underlies its name:
The Jewel Box.
One of [...]

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Meteors Over Quebec

August 17, 2010

Meteors streaked through the sky above many of Earth’s cities last week, but nobody was hurt, [...]

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Layered Hills in Arabia Terra on Mars

August 16, 2010

Why are some hills on
Mars so layered?
The answer is still under investigation.
Clearly,
dark [...]

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Night of the Perseids

August 15, 2010

On the night
of August 12, from moonset until dawn was
a good time to see meteors.
Enthusiasts watched
as [...]

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Arp 286: Trio in Virgo

August 14, 2010

A remarkable telescopic composition in yellow and blue,
this scene features
a trio of interacting galaxies almost 90 [...]

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