This new discovery by astronomers supports the prevalent planet formation theory that is out there. It is from the star system known as Kepler-30, which is almost 10,000 light years from planet Earth. The planets that orbit the star Kepler-30 are rather big with a couple of them being even bigger than the gas giant Jupiter.
The current technology that mankind has makes it hard for us to observe any planets that are the size of Earth or smaller at the distances of 10,000 light years or so. But NASA agrees that this discovery is still a breakthrough and sheds light into many theories and ideas that have been made regarding planet formation and how our solar system came into being.