Monday, April 25, 2011
APOD 4.3
This picture is what the night sky would look like if we could see the radio waves being emitted by a black hole in the Centaurus A galaxy. The waves are invisible to the human eye, but their distribution covers a huge area of the sky. The galaxy is located in the constellation Centaurus. The dots in the background represent not stars, but rather x-ray emitting galaxies.
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