Naked Astronomy AstroFest Special
Is an asteroid impact more likely than winning the lottery? What can Moon rock tell us about the Earth? And how did a biology teacher discover a new astronomical object? In this Naked Astronomy AstroFest special, we'll ask if the Kepler observatory is ushering in a new scientific revolution, meet Hanny van Arkel, who discovered Hanny's Voorwerp on citizen science project Galaxy Zoo and find out why one former MP thinks we should be concerned about being hit by an asteroid...
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01:29 - Understanding the Aurora
Not only are the aurora beatiful to behold, they're also scientifically interesting. Paal Brekke from the Norwegian Space Agency explains how the aurora have fascinated people throughout history, and can inform us about both the Sun and our own atmosphere...
06:20 - The New Keplerian Revolution
The Kepler observatory is named after Johannes Kepler, who first devised the laws of planetary motion, paving the way for Newton's laws of gravity. Launched in 2009, it's now providing data for a new Keplerian revolution...
14:55 - Explaining AstroFest
AstroFest is an annual celebration of space science, and this month's Naked Astronomy podcast features interviews with just a handful of the speakers at the 2012 event. Ian Ridpath explains more...
20:57 - Hanny's Voorwerp & Citizen Science
How can you discover a new astronomical object in your spare time? Hanny van Arkel, biology teacher and discoverer of Hanny's Voorwerp, explained how citizen science projects like Galaxy Zoo can expand your horizons...
26:32 - Looking to the Moon to Understand the Earth
How can rocks collected from the Moon give us a window into Earth's past? Noah Petro, lunar geologist from NASA's Goddard Space Flight Centre, explains...
34:13 - What's Happening in Andromeda?
Is our galaxy normal, or are we unique? to answer this question we need to study other galaxies, and where better to start than our nearest neighbour, Andromeda?
38:37 - Better Understanding of Brown Dwarfs
Brown Dwarfs bridge the gap between the largest planets and the smallest stars - but what are these enigmatic objects? David Pinfield explains more...
47:18 - Being Prepared for Near Earth Objects
How should we prepare for catastrophic asteroid impact? And what are the odds? Why could our fate be tied up with the Oort Cloud? Lembit Opik sheds some light on some worrying questions...