Oxygen isotope analysis tells of the wandering life of a dust grain 4.5 billion years ago
Thursday, March 3, 2011 - 15:00
in Astronomy & Space
Scientists have performed a micro-probe analysis of the core and outer layers of a pea-sized piece of a meteorite some 4.57 billion years old to reconstruct the history of its formation, providing the first evidence that dust particles like this one experienced wildly varying environments during the planet-forming years of our solar system.