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Apollo 17: The Crescent Earth
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Io Eclipse Shadow on Jupiter from Juno
What's that dark spot on Jupiter?
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The Annotated Galactic Center
The center of our Milky Way galaxy can be found some 26,000 light-years away toward the constellation Sagittarius.
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Recycling Cassiopeia A
Massive stars in our Milky Way Galaxy live spectacular lives.
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Lightning over the Volcano of Water
Have you ever watched a lightning storm in awe?
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Magellanic Galaxy NGC 55
Irregular galaxy NGC 55 is thought to be similar to the Large Magellanic Cloud (LMC).
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Noctilucent Clouds, Reflections, and Silhouettes
Sometimes it's night on the ground but day in the air. As the Earth rotates to eclipse the Sun, sunset rises up from the ground.
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A Live View from the International Space Station
If you were floating above the Earth right now, this is what you might see.
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Astronomy Picture of the Day: Irregular Galaxy NGC 55
Irregular galaxy NGC 55 is thought to be similar to the Large Magellanic Cloud (LMC).
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Astronomy Picture of the Day: Sigma Octantis and Friends
South pole star Sigma Octantis (of the constellation Octans) is on the left of this starry expanse spanning over 40 degrees across far southern skies.
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