astronomy

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Iron rain fell on early Earth, new Z machine data supports
March 18, 2015 • ALBUQUERQUE, N.M. — Researchers at Sandia National Laboratories’ Z machine have helped untangle a long-standing mystery of astrophysics: why iron is found spattered throughout Earth’s mantle, the roughly 2,000-mile thick region between Earth’s core and its crust. At first blush, it seemed more reasonable that iron arriving from collisions between...
Categories: Materials Science, Physics, Science / Technology / Engineering, Space / Astronomy
Topics: , , , , , ,
An artist's concept shows a celestial body about the size of our moon slamming at great speed into a body the size of Mercury.