Space junk is growing every day, and it poses serious problems for the future of space exploration. Fortunately, scientists from NASA and the international community are exploring ingenious ways for taking out the trash.

In conclusion, while humans have managed to boldly go where no one has gone before, we've left a lot of garbage behind.

So the next time you're outside at night, lift your gaze upward. You'll see the moon, the stars, and perhaps a couple of  planets. But now you'll know there's a lot more up there than meets the eye.