Astronomers believe is an alien world just two-Thirds the size of Earth - one of the Smallest on record. It was Identified by NASA's Spitzer Space Telescope. The exoplanet candidate, Known as UCF-1.01, orbits a star Called GJ 436, Which is located a mere 33 light-years away. Might be UCF-1.01 to the nearest world That is our solar system than our home planet Smaller.
