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Model of Phobos Grunt's base section
A model of Phobos-Grunt's base section
Organization: Russian Federal Space Agency
Mission type: Orbiter, lander, sample return[1]
Flyby of: Phobos
Satellite of: Mars
Launch date: 8 November 2011
Launch vehicle: Zenit rocket[2][3]
Launch site: Baikonur Cosmodrome[1][2]
Mass: 8120 kg[1]

Phobos-Grunt (also spelled Fobos-Grunt,[4] also called Phobos Sample Return Mission[2]) was an unmanned Russian spacecraft. It was an attempted sample return mission to Phobos, a moon of the planet Mars.[2][5][6] Scientists intended Phobos-Grunt to orbit and study Mars. It was meant to look at Mars' atmosphere and dust storms, plasma and radiation. Then, Phobos-Grunt should have landed on Phobos and returned a 200 g[5][6] soil sample to Earth.[2][5][6][7]

The spacecraft was the first Russian interplanetary mission since Mars 96.[6] It was launched on 8 November 2011 (UTC), aboard a Zenit rocket, at Baikonur Cosmodrome.[2] It was sent with the Chinese spacecraft Yinghuo-1[2][6] and with the Living Interplanetary Flight Experiment.[2]

The name Phobos-Grunt (Russian: Фобос-Грунт) is Russian for Phobos-Soil.[6]

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