Astronomers surprised by discovery of planet twice as big as Earth but 17 times as heavyAstronomers have discovered a new type of rocky planet beyond the solar system that weighs more than 17 times as much as Earth while being just over twice the size, scientists said on Monday. Jun 03, 2014
'Goldilocks' study shows which planet's climates are just right for human lifeThe bad news: Earth's oceans will evaporate away. Dec 11, 2013