NASA Mission - Mariner 9
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What was the discovories.
Mariner 9 orbited Mars and took 7,000 images of Olympus Mons the solor systems largest volcano.
Date of discovories.
Olympus Mons was discovored by Marina 9 on september 15th 1997.
Technologies used of the time.
Marina 9 had a imaging system, ultravilet spectrometer, infared spectometer, infrared radiometer, S-band occulation experiment and a celestial mechanics experiment.