Science, Maths & Technology
Can a space rock from Costa Rica reveal the origin of water on Earth?
...opening a sample in the laboratory is quite the experience. It has a pungent smell comparable to soot, or compost, and a dark friable texture that must be handled with great care (think extra-terrestrial shortbread biscuit). It is certainly a very ‘fresh’ sample of a 4.5-billion-year-old rock, containing all the ingredients it takes to form a planet. [A small fragment...