Tiny satelliets could reach space with stamp-sized thrusters

It’s barely the size of a key on your keyboard but it may take tiny satellites where few people have gone before.

Remember that Lego spaceship you once built? What if it could have a working thruster the size and weight of a Lego brick?

MIT professor Paulo Lozano is designing prototype “microthrusters” that would propel pint-size satellites in orbit and into deep space.