COMET ISON LIVE MEETING

Scientist Discuss 'Comet of the Century' in Comet ISON Workshop - See more at: http://www.space.com/19195-night-sky-planets-asteroids-webcasts.html#sthash.IaLlqoLQ.dpuf

Scientist Discuss 'Comet of the Century' in Comet ISON Workshop - See more at: http://www.space.com/19195-night-sky-planets-asteroids-webcasts.html#sthash.IaLlqoLQ.dpuf