Why do we want a CubeSat

Cubesats are popular with schools and governments because they are cheap and relatively easy to build. Because a lot of the hardware has been standardized. CubeSats are generally used for small and relatively risky projects like small biological experiments, because of their low cost compared to other, bigger satellites. They are also used for earth observation and amateur radio. There are several missions planned with CubeSats to the Moon and Mars. Cubesats have become the standard microsatellite thanks to their Open Source Hardware design.