NASA's Kepler space telescope has found two new planets orbiting a distant sun-like star, and the researchers who made the find say these two are the size of Earth or smaller. That's a first in the search for extraterrestrial life.

If the discovery holds up under scrutiny by other scientists, it could be a very big deal. Earth-sized planets are considered critical in the search for life elsewhere in the universe, but until now, scientists said their instruments were not sensitive enough to detect them.



Source: NASA Kepler Probe Finds Two Earth-Sized Planets Orbiting Star - Yahoo! News