Although we know much more about space than we did 100 or even 50 years ago, there are still many things we don’t understand. Today we present you with some of the biggest unsolved mysteries of space.

1 mystery space

Time travel – Scientists are constantly debating whether time travel is ever going to be possible, and a lot of them agree that it could be possible in the future, but only if you’re traveling forward in time. For that to happen, you would have to build a ship that could travel at the speed of light or faster.