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Clouds of Ursa Major
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M31: The Andromeda Galaxy
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M82: Galaxy with a Supergalactic Wind
Why is the Cigar Galaxy billowing red smoke?
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Astronomy Picture of the Day: Earthrise: A Video Reconstruction
About 12 seconds into this video, something unusual happens.
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Astronomy Picture of the Day: M31: The Andromeda Galaxy
What is the nearest major galaxy to our own Milky Way Galaxy? Andromeda. In fact, our Galaxy is thought to look much like Andromeda.
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Astronomy Picture of the Day: The Sun's Spectrum with its Missing Colors
It is still not known why the Sun's light is missing some colors.
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Astronomy Picture of the Day: Launch of the Parker Solar Probe
When is the best time to launch a probe to the Sun?
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Astronomy Picture of the Day: The Case of the Backwards Orbiting Asteroid
Why does asteroid 2015 BZ509 orbit the Sun the backwards?
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Astronomy Picture of the Day: The View Toward M101
Big, beautiful spiral galaxy M101 is one of the last entries in Charles Messier's famous catalog, but definitely not one of the least.
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Astronomy Picture of the Day: The Snows of Churyumov-Gerasimenko
You couldn't really be caught in this blizzard while standing by a cliff on Churyumov-Gerasimenko, also known as comet 67P.
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