Rosetta On Course To Achieve Historic Mission

NPR | By Rob Stein

Published January 20, 2014 at 11:00 PM CST

Corrected: January 20, 2014 at 11:00 PM CST

In this story, we say the Rosetta spacecraft weighs 6,400 tons. We should have said 6,400 pounds.

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Rob Stein

Rob Stein is a Correspondent and Senior Editor on NPR's Science Desk.