China has a plan to clean up space junk with lasers

Orbital debris (aka. space junk) is one of the greatest problems facing space agencies today. After 60 years of sending rockets, boosters and satellites into space, the situation in the low Earth orbit (LEO) has become rather crowded. Given how fast debris in orbit can travel, even the tiniest bits of junk can pose a major threat to the International Space Station and threaten still-active satellites.