What's makes this discovery important is that its not very common for us to find Exo-planets (planets outside of our own solar system) to be smaller than Earth in size, or for us to find one so relatively close. With every new discovery of planets outside our solar system, it raises the probability and chance of life existing through-out the universe:
The exoplanet candidate, called UCF-1.01, is located only 33 light-years away, orbiting the star GJ 436. It is possibly the nearest world to our solar system that is smaller than our home planet. You can see the background stars in their accurate constellations in this video, while we pan out away from Earth. We then move away from our solar system to the GJ 436 solar system, and zoom in to see the new planet, UCF-1.01.