Saturday, July 21, 2012

Dwarf helps form spiral galaxy

Summary: Astronomers have found a well formed spiral galaxy just 3 billion years after the big bang. It is extremely rare for a well formed spiral to appear this early due to how chaotic the universe still was at this point. It was helped along by a small dwarf galaxy orbiting it; this added an extra gravitational pull to form the spiral.




BBC News: http://www.bbc.co.uk/news/science-environment-18891760

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