Gas Giant (Ice Version) Photoset by Flex McCool
Gas Giant (Fire Version) Photoset by Flex McCool
Planets large and small populate our galaxy
Astronomers have discovered more than 700 alien planets beyond the solar system, and the count is rising all the time. Some are large and hot, and others are smaller and cooler, but scientists are still on the lookout for an Earth twin.
They just got closer, with the announcement Dec. 5 of a planet found by NASA’s Kepler space telescope to lie in the habitable zone around its star where liquid water, and perhaps life, could exist.