Mary Cleave
Mary Cleave
Mary Louise Cleaveis an American engineer and a former NASA astronaut. She also served from 2004 to 2007 as NASA Associate Administrator for the Science Mission Directorate...
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New Horizons will study a unique world, and we can only imagine what we may learn. This is a prime example of scientific missions that complement the Vision for Space Exploration.
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Comets are some of the most informative occupants of the solar system. The more we can learn from science exploration missions like Stardust, the more we can prepare for human exploration to the Moon, Mars, and beyond.
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Indeed, the asteroid's orbit is particularly attractive for spacecraft rendezvous, and the extraordinary close encounter in April 2029 provides a unique opportunity to investigate a number of scientific NEO issues.
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The Europa line is gone because we don't have the money to do it now. We didn't say that we're never going to do it. It's just that we don't have it within this budget framework.
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TOPEX/Poseidon revolutionized the study of Earth's oceans, providing the first continuous, global coverage of ocean surface topography and allowing us to see important week-to-week oceanic variations. Its data made a huge difference in our understanding of the oceans and their affect on global climatic conditions.
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The extended journeys taken by the two rovers across the surface of Mars has allowed the science community to continue to uncover discoveries that will enable new investigations of the red planet far into the future.