Over the coming days he will be conducting question-and-answer sessions on Twitter - both on solar activity and dark matter. Follow him at DrStuClark and post your questions using the prefix #AskDrStu. (2:00)

There's a new BBC TV series starting this week called Paradox. Its writer Lizzy Mickery comes into the studio to tell us about the challenges of getting a drama based on science onto prime-time TV. (12:10)

In the newsjam we look at a new drug hailed as the "female viagra" and Nasa's announcement that its LCROSS probe found water on the moon. (15:30)

Duncan Clark from environmentguardian.co.uk responds to the s*** storm of blog comments arising from last week's podcast on eco-myths. Who'd have thought people could get so excited about nappies? (23:25)

Steven Levitt talks about his controversial views on geo-engineering, expressed in his latest book SuperFreakonomics. Hear more of that interview in the Guardian's The Business podcast. (26:15)

All the way from Denmark, Dr Rachel Armstrong discusses living buildings and metabolic materials. She is giving a Lunch Hour Lecture at UCL this week. (30:15)

We finish the show with more music ... the winner of Discover Magazine's "evolution in two minutes or less" video competition. (33:15)

Science correspondent Ian Sample lends us his wisdom in the pod. We promise to give it back soon.

WARNING: contains strong language.

Post your comments below.

Join our Facebook group.

Listen back through our archive.

Follow the podcast on our Science Weekly Twitter feed and receive updates on all breaking science news stories from Guardian Science.

Subscribe free via iTunes to ensure every episode gets delivered. (Here is the non-iTunes URL feed).

]]> Astronomer Stuart Clark joins us in the studio to look at the latest thinking about the effects of variations in solar activity on the Earth's climate. Dark matter gets a mention too.

Over the coming days he will be conducting question-and-answer sessions on Twitter - both on solar activity and dark matter. Follow him at DrStuClark and post your questions using the prefix #AskDrStu. (2:00)

There's a new BBC TV series starting this week called Paradox. Its writer Lizzy Mickery comes into the studio to tell us about the challenges of getting a drama based on science onto prime-time TV. (12:10)

In the newsjam we look at a new drug hailed as the "female viagra" and Nasa's announcement that its LCROSS probe found water on the moon. (15:30)

Duncan Clark from environmentguardian.co.uk responds to the s*** storm of blog comments arising from last week's podcast on eco-myths. Who'd have thought people could get so excited about nappies? (23:25)

Steven Levitt talks about his controversial views on geo-engineering, expressed in his latest book SuperFreakonomics. Hear more of that interview in the Guardian's The Business podcast. (26:15)

All the way from Denmark, Dr Rachel Armstrong discusses living buildings and metabolic materials. She is giving a Lunch Hour Lecture at UCL this week. (30:15)

We finish the show with more music ... the winner of Discover Magazine's "evolution in two minutes or less" video competition. (33:15)

Science correspondent Ian Sample lends us his wisdom in the pod. We promise to give it back soon.

WARNING: contains strong language.

Post your comments below.

Join our Facebook group.

Listen back through our archive.

Follow the podcast on our Science Weekly Twitter feed and receive updates on all breaking science news stories from Guardian Science.

Subscribe free via iTunes to ensure every episode gets delivered. (Here is the non-iTunes URL feed).

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