How Tiny Satellites are Invading the Solar System

As multi-million dollar spacecraft crawl across our solar system, they could bring smaller passengers with them -- these tiny vehicles are called CubeSats and they've so far done a great job colonizing low Earth orbit.

Published On 06/29/2015
12:40 PM EDT
Artist's conception of the European Space Agency mission called the Asteroid Impact Mission (AIM), which could carry up to six CubeSats with it. | APL
Artist's conception of CubeSats at Jupiter (right) and its moon Europa. | NASA/JPL
Mars Sojourner stands ready to explore the Red Planet in 1997. | NASA