Rosetta's journey

Launch date: March 2, 2004

Launch place: French Guiana

Launch mass: Rosetta: 2,900 kilograms; Philae: 100 kilograms

Rosetta dimensions: 2.8 x 2.1 x 2.0 meters, plus two 14-meter solar panels

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Harvey Leifert

Leifert is a freelance science writer based in Bethesda, Md.

Friday, September 30, 2016 - 06:00