7 agosto 2014
Astronomers and students have found a bridge of atomic hydrogen gas 2.6 million light years long between galaxies 500 million light years away. The stream of atomic hydrogen gas is the largest known, a million light years longer than a gas tail found in the Virgo Cluster by another Arecibo project a few years ago.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PK014vT7jy4/140807105047.htm
