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unmanned planetary probe [1 record]

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Record 1 2003-02-27

English

Subject field(s)
  • Spacecraft
  • Interplanetary Space Exploration
CONT

Voyager 2, an unmanned planetary probe, began sending images of the planet Neptune 2.8 billion miles through space to Earth.

French

Domaine(s)
  • Engins spatiaux
  • Exploration interplanétaire
OBS

sonde planétaire : La première sonde planétaire envoyée avec succès vers Mars fut Mariner 4 des États-Unis, lancée le 28 novembre 1964. Au mois de juillet suivant, Mariner 4 passa au large de la planète rouge, à 9 846 km de la surface. La sonde transmit 22 gros plans de Mars, qui confirmèrent pour la première fois l'existence de cratères à sa surface.

Spanish

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