Wednesday, 19 November 2014

Spooky alignment of quasars across billions of light-years

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Quasars are galaxies with very active supermassive black holes at their centres. These black holes are surrounded by spinning discs of extremely hot material that is often spewed out in long jets along their axes of rotation. Quasars can shine more brightly than all the stars in the rest of their host galaxies put together.



Zazzle Space market place

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