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A Long Storm System on Saturn
It was one of the largest and longest lived storms ever recorded in our Solar System.
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Pluto in True Color
What color is Pluto, really? It took some effort to figure out.
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Moonquakes Surprisingly Common
Why are there so many moonquakes?
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Astronomy Picture of the Day: Coronal Rain on the Sun
Does it rain on the Sun? Yes, although what falls is not water but extremely hot plasma.
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Astronomy Picture of the Day: NGC 7635: The Bubble Nebula
Blown by the wind from a massive star, this interstellar apparition has a surprisingly familiar shape.
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Astronomy Picture of the Day: NGC 2023 in the Horsehead's Shadow
Carved by a bright young star in Orion's dusty molecular clouds, NGC 2023 is often overlooked in favor of the nearby dramatic silhouette of the Horsehead Nebula
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Astronomy Picture of the Day: Colorful Airglow Bands Surround Milky Way
Why would the sky glow like a giant repeating rainbow?
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