Video: The truth about Comet ISON
Hear from Alan MacRobert, senior editor at skyandtelescope.com, exactly what you need to know at this time about Comet ISON. Will it be the Comet of the Century in late 2013? It’s not looking likely, but comets are notoriously unpredictable. MacRobert tells you what to expect from this comet, and how to optimize your chances for seeing it.