If you think Mount Everest is something to write home about, take a look at Olympus Mons. Standing at an incredible 27 miles high, this ancient Martian volcano is three times the size of Everest, making it the tallest mountain in our solar system — by a lot.

The jury's still out on NASA handing over the reins to private companies to lead us into space, but SpaceX, one of said companies, just launched its first spaceship into orbit with the intent of bringing it back safely. In fact, it's the first time a private spaceflight company has ever done this — bringing it back being the important thing.

In the future, stores won't exist anymore as you'll be able to print everything from clothes to food right at home using a 3D printer. Just download a recipe or a pattern, hit print, and in a few minutes you'll have a fresh copy of whatever it is that you need. We're not quite there yet, but we're close, and here are 14 things that you probably didn't think were possible to print out for yourself.

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.