Kepler-69c, the biggest of this newly discovered trio is estimated to be 70 percent larger than Earth and takes 242 days to revolve around its sun-like star Kepler-69.
One of the four, dubbed KOI 172.02, is a mere 1.5 times the size of the Earth and around a star like our own Sun - perhaps as near as the current data allow to finding an "Earth 2.0".