This Friday, a Nasa mission boldly goes where no one has gone before - by deliberately crashing a satellite into the moon's surface to see what happens. The LCROSS mission is due for lunar impact, but it's not just about smash, bang, wallop. Your presenter, Bobbie Johnson, talks to Nasa scientist Dr Kim Ennico about the mission - and how it could herald new things for space exploration.
Elsewhere, Charles Arthur gets to grips with the new MiFi gadget from 3 - a gizmo that promises to turn you into a walking internet hotspot. Sounds like fun, but does it really work in real life?
As always, we also take a turn through the week's big news stories and dive into your comments, Facebook messages and tweets.
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