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Unusual Signal Suggests Neutron Star Destroyed by Black Hole
What created this unusual explosion?
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Messier 61 Close Up
Image data from the Hubble Space Telescope, the European Southern Observatory, and small telescopes on planet Earth are combined in this magnificent portrait of face-on spiral galaxy Messier 61 (M61).
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The Local Void in the Nearby Universe
What does our region of the Universe look like?
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Astronomy Picture of the Day: M100: A Grand Design Spiral Galaxy
Majestic on a truly cosmic scale, M100 is appropriately known as a grand design spiral galaxy.
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Astronomy Picture of the Day: Nearby Cepheid Variable RS Pup
In the center is one of the most important stars on the sky.
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Astronomy Picture of the Day: M86 in the Central Virgo Cluster
Is there a bridge of gas connecting these two great galaxies? Quite possibly, but it is hard to be sure.
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