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Basins and Distance
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| Hellas Planitia is a huge Mars basin. A basin is low land surrounded by higher land in the southern hemisphere. Hellas Planita is the largest basin on Mars' surface at a size of 1,250 miles across. That’s the distance from New York to Kansas! Hellas Planitia was probably formed when a giant meteorite hit the surface of Mars.
Valles Marineris, 4000 km (2500 miles) long, easily dwarfs the Earth's Grand Canyon. It takes about 7 months for a spaceship to get to Mars from Earth. When Mars and Earth are on the same side of the sun, the two planets can approach to within 34 million miles of each other. |
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| Latest Update March 24, 2006 | |||||||||||||||||||||||