Mars meteorite reveals its age

Long difficult to estimate, date of space rocks' formation emerges with new technique

By Andrew Grant, 13:38 PM July 24, 2013

Providing a tool for unlocking secrets of the early solar system, a new technique accurately determines the age of meteorites, scientists report in the July 25 Nature.

Scientists disagree over estimates of meteorites’ ages because it’s hard to distinguish between when the rocks formed and when they got seared from an impact and flung into space toward Earth.

UCLA geochronologist Axel Schmitt and colleagues began by examining the structure of a meteorite’s mineral crystals, which differs d...

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