Mars: Pathfinder (1 ene 1996 año – 30 dic 1997 año)

Descripción:

Rover: "Sojourner"

Launch vehicle:
Delta II

Airbag landing

Alpha Proton X-ray Spectrometer: Determined the elemental composition of rocks and soils.
Three Cameras: provided images of the surrounding terrain for geological studies, and documented the performance and operating environment for Pathfinder mission technologies.
Atmospheric Structure Instrument/ Meteorology Package: Measured the Martian atmosphere during Pathfinder's descent to the surface, and provided meteorological measurements at the lander.


GEOLOGICAL EVIDENCE:


Found rounded pebbles and cobbles at the landing site, and other observations, suggested conglomerates that formed in running water during a warmer past in which liquid water was stable.

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