California meteorite a scientific gold mine

Sutter’s Mill rock preserves rare, fresh material from outer space

A meteorite that fell where California’s gold rush began has triggered a similar gold rush for scientists: to study one of the freshest, most unusual space rocks around.

PAY DIRT Fragments of the Sutter’s Mill meteorite were collected within days of falling over California in April. The freshness of the samples has given researchers an unusually pristine look at a rare type of space rock.