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Centaurus A's Warped Magnetic Fields
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Nearby Spiral Galaxy NGC 4945
Large spiral galaxy NGC 4945 is seen edge-on near the center of this cosmic galaxy portrait.
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Elements in the Aftermath
Massive stars spend their brief lives furiously burning nuclear fuel.
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M83: The Thousand-Ruby Galaxx
Big, bright, and beautiful, spiral galaxy M83 lies a mere twelve million light-years away, near the southeastern tip of the very long constellation Hydra.
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Astronomy Picture of the Day: Shells of Stars in Elliptical Galaxy PGC 42871
How do galaxies grow? To help find out, the Hubble Space Telescope was deployed to image the unusual elliptical galaxy PGC 42871.
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Astronomy Picture of the Day: Star Trails and the Bracewell Radio Sundial
Sundials use the location of a shadow to measure the Earth's rotation and indicate the time of day.
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Astronomy Picture of the Day: Centaurus A
Only 11 million light-years away, Centaurus A is the closest active galaxy to planet Earth.
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