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February 2009 Extra: Dust

February 2009 Extra

The February Extra show is a little late but finally here. First up, Nick and Stuart talk about the latest Jodcast video about Newton's Principia. We also remind everyone about the chance to vote on the next observation target for Hubble and mention a post in the forum.


Nick talked to Professor Albert Zijlstra (Jodrell Bank Centre for Astrophysics) about observations of dust around a star in conditions thought to be very similar to those in the early universe. "All the elements heavier than helium were made after the Big Bang in successive generations of stars", explained Zijlstra. "We came up with the idea of looking at nearby galaxies poor in heavier elements to get a close-up view of how stars live and die in conditions similar to those in the early universe."

Ask an Astronomer

Nick puts listener questions to Tim O'Brien. This month the questions include:

Show Credits

Interview:Prof Albert Zijlstra and Nick Rattenbury
Ask An Astronomer:Dr Tim O'Brien and Nick Rattenbury
Presenters:Nick Rattenbury and Stuart Lowe
Editor:Stuart Lowe
Segment voice:Danny Wong-McSweeney
Website:Stuart Lowe
Cover art:Optical image of the carbon star IRC+10216 in our own Milky Way galaxy taken with FORS1 on the Very Large Telescope Credit: Izan Leao (Universidade Federal do Rio Grande do Norte, Brazil)

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