President Obama's latest budget proposals mean Nasa doesn't have enough money to go back to the moon. Kevin Fong from University College London discusses what this means for manned space travel.
In the newsjam we look at how doctors communicated with a man in a vegetative state, how protesters survived a homeopathy overdose, reaction times in gunfights, and why running is good for the brain.
Following a ruling from the General Medical Council against Dr Andrew Wakefield, the Lancet has retracted his paper on links between the MMR jab and autism. But is this really the end of the controversy?
The Observer's science and technology editor Robin McKie and Guardian science correspondent Ian Sample were on hand in the studio to share their wisdom.
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