Whether or not they get their electricity from solar panels, satellites still need fuel to keep themselves from eventually crashing back to Earth in an apocalyptic fireball that might, but probably won't, land right on your head. The only way to extend their lifespan is with in-flight refueling, and a new gas station on the ISS might make that possible.

There's a lotta junk in space, and figuring out how to remove it all has been a popular topic in the space community. Here's a new idea out of Russia: sink $2 billion into a roaming, pod-shaped craft that'll safely dispose of 600 dead satellites.

What happens when a satellite has outlived its purpose? Most of the time it turns into space junk, and the increasing amount of said space junk has begun to be an issue for other satellites and, worse, manned space vehicles...