NASA has found a planet outside our solar system that looks to be an awful lot like Earth--or maybe even better, given that its climate is roughly like a balmy day in Key West.
The planet, Kepler-22b, is the first confirmed planet within the "habitable zone," meaning that liquid water could exist on the surface and support life. It is almost 2.5 times the size of Earth and 600 light years away, so you may want to start saving your frequent flier miles now if you want your great-to-the-29th-power grandchildren to have a shot at vacationing there.
Scientists estimate the temperature on the surface of the planet to be about 72 degrees, according to the Associated Press. Kepler-22b circles a star very similar to our own sun, although it does it in a slightly shorter period, with one Kepler 22-b year lasting about 290 days.
Scientists say it's likely the planet has water and land, but can't yet rule out the possibility that it is an entirely gaseous planet, which would severely limit its potential as an intergalactic vacation destination.… Read more