For hundreds of years, humans have wondered if we are alone in the Universe and if there is another planet out there, like our own, that could support life.
Well scientists think they might have found a planet very similar to Earth, which means it could well be capable of supporting life.
And it isn't too far from away from our planet either...well, in space terms at least!
It's would still take a thousand years of travel to get there - not exactly around the corner.
Check out the video.