Is there a planet beyond Pluto?

Is there a planet beyond Pluto?

In this edition of Naked Astronomy, why scientists are making mud in the laboratory to try free a trapped Mars rover, the discs that give birth to new planets, the space equivalent of an ordnance survey map for the stars and how scientists are seeking the origins of life in outer space. Plus, your queries about the cosmos: could Earth capture a new moon, why is the asteroid belt not just a planet and is there a planet beyond Pluto…

The Oldest Light in the Universe

The Oldest Light in the Universe

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…?