According to NASA, there's more than half-a-million pieces of "space junk" orbiting our planet. This debris is moving fast. NASA claims that much of it is traveling "at speeds up to 17,500 mph." At velocities like this, it doesn't take a lot of mass to cause some serious damage.

With the hazard in mind, it shouldn't come as too much of a surprise that someone's trying to do something about it. Switzerland's "Pac-Man" probe is slated to launch in a few years, but this design requires a lot of variables to work in an operator's favor for success. There's a push for a more sci-fi-inspired approach, and it can be summed up in one word: lasers.

Hank Green is presenting for SciShow this week, and he's also taking a look at the recent Soyuz docking. There's a mention of the epic super moon coinciding with the lunar eclipse later this month, too. Don't miss it!

Check out the clip below for the details and let us know what you think in the comments. When the video's over, be sure to share it with your friends on Facebook!