Today in the history of astronomy, Hubble images a highly anticipated visitor from the outer solar system. In September 2012, Russian astronomers Vitali Nevski and Artyom Novichonok discovered Comet C/2012 S1; as they were using a telescope from the International Scientific Optical Network, the comet was named ISON. Comet ISON was a new visitor from the O... [835 chars]
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