This month on Naked Astronomy, we're waxing lyrical about aliens. What might they look like? Can we apply the principles of biology to other worlds? To do that, Ben McAllister and Adam Murphy were joined by Arik Kershenbaum to chat about alien evolution... Like this podcast? Please help us by supporting the Naked Scientists

This month on Naked Astronomy, we're mulling over Mars. We'll be chatting about the question of liquid water on the surface of Mars. Is it there at all? And if it is, how do we find it? And to do that, Ben McAllister and Adam Murphy were joined by Lujendra Ojha from Rutgers University to chat about why Mars fascinates us... Like this podcast? Please help us by supporting the Naked Scientists