Given the vastness of the universe, many scientists and great thinkers of our time have said they believe that somewhere out there, there are likely other life forms.
Since the universe is so large, much of the recent focus on the search for alien life is beginning much closer to home. Scientists have found four potentially habitable exoplanets fairly close (in space terms) that might be able to harbor life.
For a planet to harbor life like human beings, many things have to be just right — from the temperature to the atmosphere and much more. So how do these exoplanets stack up? This handy infographic gives us the break down.
Don't worry. If you are hoping for alien contact, there is nothing that says other life forms out there have to exist under the same conditions we do so that pretty much opens ups the playing field!