Spinning. In the show this time, we talk to Dr Alastair Edge about active galaxy cluster centres [13:57 - 31:05], Dr Bob Watson tells us about the cosmic microwave background polarisation results from Planck and BICEP2 in this month's JodBite [01:03 - 13:50], and your astronomical questions are answered by Dr Iain McDonald in Ask an Astronomer [40:43 - 50:39].
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