okt 282013
Carbon Worlds Likely Bone-Dry and Lifeless

  Planets rich in carbon, including so-called diamond planets, may lack oceans, according to NASA-funded theoretical research.  This artist’s concept illustrates the fate of two different planets: the one on the left is similar to Earth, made up largely of silicate-based rocks with oceans coating its surface. The one on the right is rich in [continue reading]