EnvironmentThe 12 biggest and best science stories of 2016 From the detection of gravitational waves to the birth of a three-parent baby, Âé¶¹´«Ã½ wraps up the most mind-expanding discoveries of the year News
SpacePluto must have liquid ocean or it'd look like an overripe peach If Pluto’s inner sea froze recently, we should see ridges popping up in the dwarf planet's outer shell. Since we don’t, it's probably still liquid News