Google backs private Moon landing

Search giant Google is offering a $30m prize pot to private firms that land a robot rover on the Moon.

The competition to send a robot craft to the Moon is being run with the X-Prize Foundation.

To claim the cash, any craft reaching the lunar surface must perform a series of tasks such as shoot video and roam for specific distances.

Firms interested in trying for the prize have until the end of 2012 to mount their Moonshot.