Captivated by Comets - Naked Astronomy 13.02.25 -

Naked Astronomy - From the Naked Scientists show

Summary: 2013 looks like a good year for comets! We find out where these balls of dust and ice come from and what to expect from Pan-STARRS and ISON. Plus, the close fly-by of Asteroid 2012 DA14, the fireball that exploded over Russia and your space science questions.