Docking, rendezvous and Newton's third law – the challenge of servicing satellites in space

If you want to build or fix something in space, you might think you'd need a human to do it. But what if you didn't? What if robotic spacecraft could be used to refuel satellites in orbit, add new instruments to outdated machinery and even build entire structures while in space? More

(Source: Phys.org - Mar 12)