Kepler discovered two planets whose size is as same as the earth.

NASA newly checked two planets which go the fixed star similar to the sun around on December 20.

Two planets which space telescope Kepler of NASA discovered are the ever found first things that can be called "the earth size."
Two planets were named "Kepler 20e" and "Kepler 20f".

Mr. Francois Fressin said, "In 2011, it may memorize as first year for human beings to discover the planet which is almost same size as the earth and goes fixed stars other than the sun around. "

"It was proved for the first time that the planet which is almost same size as the earth exists in the circumference of other fixed stars and that we can detect it. " he said.