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Last updated on April 16, 2014 at 21:24 EDT
Mars Express mounted on the Fregat upper stage
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Mars Express mounted on the Fregat upper stage

January 18, 2005
Most of the energy needed to propel Mars Express from Earth to Mars is provided by the four-stage Soyuz/Fregat launcher. The Fregat upper stage will separate from the spacecraft after placing it on a Mars-bound trajectory.