From guardian.co.ukOriginal source
A US company has unveiled plans to launch a fleet of spacecraft to hunt for small asteroids that pass close to Earth which might one day be mined for their precious resources.
Deep Space Industries aims to fly a series of low cost prospecting satellites in 2015 on missions of two to six months, with larger spacecraft embarking on round-trips to collect material a year later.
Asteroids vary in their compositions, but some are rich in the platinum group materials and other highly valued metals. Some asteroids are largely made from nickel-iron alloys.
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