Last week, US Republican presidential hopeful Newt Gingrich declared that if he were elected president, he would build a manned base on the Moon by 2020. Does this make him a visionary or a fantasist? And what happened to the dream of manned space exploration? Why aren’t there people living on the Moon already?

We ask space guru and Fellow of the Royal Society, Mike Lockwood.

That’s tonight at 9pm Wednesday 1st February on Resonance 104.4 FM.