Asteroid dust brought back to Earth may explain where our water came from with hydrogen clues
Raw Story -

Oceans cover more than 70% of the Earth’s surface, and scientists argue that the planet’s interior also contains a lot of water. But where did all this water come from? I and my postdoc Ziliang Jin analyzed grains of the mineral pyroxene from an asteroid called Itokawa, which is the first asteroid that humankind ever sampled. The Japanese probe Hayabusa brought back about 1,500 particles from the asteroid’s surface in 2010, and our recent measurements

Read this story at


Related Articles