Astronomers Detect Dust Feature in Comet ISON's Inner Coma

In April, when the Hubble Space Telescope looked out towards Jupiter's orbit and observed what has been billed as the "Comet of the Century" - Comet C/2012 S1 ISON - the space telescope photographed a unique feature in the comet's coma. Now, a team of ground-based astronomers have performed follow-up observations, imaging Comet ISON as