Nasa mission to map water on the Moon

A small satellite is due to be sent to the Moon this week to find and map out any water that's on the lunar surface.

Nasa's Lunar Trailblazer, which is an unmanned craft, will be blasted into space on a SpaceX Falcon rocket.

About 48 hours after take-off it will separate from the rocket and make its way independently to the Moon.

Its aim during its two-year mission is to discover water on the Moon, find out what form it is in and where exactly it is, and map its locations on the surface.

The information will be used to support future missions to the Moon.