NASA's new discovery missions

Article Abstract:

The National Aeronautics Space Administration (NASA) intends to launch new Discovery missions at the start of the 21st century. The launching of Genesis and the Comet Nucleus Tour (CONTOUR) seeks to gather evidences that will widen man's knowledge on the origin of the universe.

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Fields of dreams: America's growing commercial spaceports

Article Abstract:

Space launch complexes are being planned and constructed on desolate lands and off the shores of the US. The most promising sites and the plans being drafted for them are discussed.

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Mars ... once a land of lakes and life?

Article Abstract:

Mars was once warmer and wetter than it is now, according to images produced by the Mars Global Surveyor spacecraft. This images show very large sedimentary deposits.

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