An Alien's Eye View and Cosmic Climate Change

What would an extrasolar observer see of our solar system? We find out in this month's Naked Astronomy as well as explore the events that led to climate change on a cosmic scale. Plus, news of an asteroid flyby, surfing Venus' atmosphere and the end of the WMAP. We take on your space science questions, including the best place to site a space elevator! Like this podcast? Please help us by supporting the Naked Scientists