But you will not have the chance to meet your long distance cousins in this lifetime, as the latest Earth-like planet discovered is 600 light-years away. And just One light-year is equal to: exactly 9,460,730,472,580.8 km (about 9.5 Petametre) or about 5,878,625,373,183.608 miles (about 6 trillion miles).
The Kepler (Mission to search for habitable planets) mission's science team announced its latest finding at a press conference on Monday, Dec. 5, 2011, The team announced the confirmation of Kepler-22b, its first planet found in the "The Goldilocks Zone," the region where liquid water could exist on a planet's surface.
The Goldilocks Zone
As the scientists continue their hunt & missions, we have to continue living, ....down-to-earth.
All About Kepler:
http://www.nasa.gov/mission_pages/kepler/main/index.html
The press conference:
http://www.youtube.com/watch?v=en5OObU0ryU