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Virgo Cluster galaxy’s stunning gas tail

22 February 2016 Astronomy Now

Astronomers have discovered a spectacular tail of gas more than 300,000 light-years across coming from a galaxy known as NGC 4569, 55 million light-years away in the Virgo Cluster. The plume is made up of hydrogen gas — the material new stars are made of — and is five times longer than the galaxy itself.