The diamond rose 700 km from Earth’s mantle to the surface.
The practice could reduce the need for pesticides, improve soil quality, and absorb carbon dioxide.
The world, known as HD189733b, has a deep azure hue, probably the result of molten silicate glass rain in the atmosphere, which scatters blue light. The giant planet is one of the closest and most studied in the exoplanets recently discovered; it is a sauna, a hazy hothouse swept by blow-torch winds powered by the molten silicates. It is most