Naked Astronomy - From the Naked Scientists

In this launch edition of Naked Astronomy, we report on how the Planck probe is seeing the oldest light in the Universe, the Rosetta mission flyby en-route to a distant comet, how LCROSS executed a deft lunar impact and what it revealed, how the LRO has imaged the Apollo landing sites and how Herschel promises to shed some light on the deep dark depths of space. Plus, your cosmological questions answered including, what's a quasar, why are the rings of Uranus vertical, do astronauts age more rapidly and could we brighten up the full moon with a giant lunar reflector...?