Search for E.T. Should Extend Beyond 'Alien Earths,' Astronomer Says
By Mike Wall | SPACE.com
May 2, 2013
Scientists searching for signs of life beyond our solar system should keep an open mind, for planets very different than Earth may well be habitable, a prominent researcher says. While it may seem natural to zero in on "alien Earths," such a narrow focus would exclude many potentially life-supporting exoplanets, whose diversity continues to astound astronomers, says Sara Seager of MIT. [Read more] ...