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Name: William H.
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We are a third grade class at Hunting Ridge School. We just saw a computer image of mars on a scientific visualization tool. We saw Olympus Mons and measured its diameter to be about 550 km. This is a very interesting feature on Mars. How many volcanoes does Mars have? Could there have been water on Olympus Mons at one time? What is the gravity on Mars? How deep is Olympus Mons? What was the first space ship to go to Mars?

Olympus Mons is about 80,000 ft high, much taller than any terrestrial mountain or volcano. Many planetary scientists believe there once was surface water on Mars, enough to cause the extensive surface erosion we see today, not just the small polar icecaps (that are mostly frozen CO2, dry ice). Planetary probes sent to Mars: Mariner 4, 6, and 7 did fly-bys in the late 60's; Mariner 9 and the Soviets' Mars 2 and 3 began orbiting Mars in 1971-- the Soviet craft ejected soft landers; the first Viking landed in 1976 (sounds like Eric the Red..), the two Viking landers sent back all those famous close-ups of the surface. If you check NASA's Spacelink BBS (reachable through NEWTON: go to 4) Network in the main menu you should find much more information on Mars and lots of stuff about the upcoming Mission to Mars.


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