Pathfinder & Sojourner: the story

Chapter 1 of 7

4 December 1996

Launch

Pathfinder & Sojourner left Earth on a Delta II 7925 from Space Launch Complex 17B.

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4 July 1997

Arrival

Airbag landing at Ares Vallis.

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4 December 1996

Liftoff

A Delta II launched Mars Pathfinder from Launch Complex 17B.

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4 July 1997

Bouncing in

Wrapped in airbags, it bounced about 15 times, as high as 15 m, before rolling to a stop.

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5 July 1997

Sojourner rolls off

Late on its second day, Sojourner stood up to its full 30 cm and drove down the lander's rear ramp.

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1997

Ares Vallis

An ancient flood plain, among the rockiest places on Mars, chosen for its variety of rocks.

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27 September 1997

Last signal

The lander's last full transmission came on 27 September 1997. Sojourner, which talked to Earth through the lander, went quiet with it.

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Mars Polar Lander →Back to Pathfinder & Sojourner