S-TYPE AS­TER­OIDS IN­CLUDE PLAT­INUM

Science Illustrated - - SPACE -

S-type as­ter­oids are hard and stony, and are be­lieved to in­clude sev­eral dif­fer­ent met­als. Th­ese in­clude much plat­inum, which is used in lots of elec­tron­ics and is one of the most ex­pen­sive met­als. The S-type makes up about 17 % of all known as­ter­oids.

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