Amazing telescopes produce hot space images

Ground-based telescopes continue to produce some of world's important space discoveries

The Leo gas ring, a giant ring of cold gas 650,000 light-years wide surrounding the galaxies of the Leo group, is one of the most dramatic and mysterious clouds of intergalactic gas, researchers say. Recently astronomers using the Canada-France-Hawaii Telescope unveiled the origin of the giant Leo gas ring: a violent collision between two galaxies, slightly more than 1 billion years ago.

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