1. The search for water ice on Mars.
... lost at arrival in 1999. In 2001 the United States launched the Mars Odyssey it is an orbiting spacecraft designed to determine the composition of the planet's surface, to detect water and shallow buried ice, and to study the radiation environment. The Odyssey will collect images that will be used to identify the minerals present in the soils and rocks on the surface and to study small-scale geologic ... processes and landing site characteristics. By measuring the amount of hydrogen in the upper meter of soil across the whole planet, the spacecraft will help us understand how much ... so...
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