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Leadership in science by seeking knowledge of the universe and searching for life beyond Earth.  Space weather takes on a new dimension as human spaceflight into deep space becomes common, because radiation from solar disturbances can injure or even kill astronauts who do not have adequate shielding and may cause long-term cancerous and noncancerous effects. Copyright © National Academy of Sciences. All rights reserved. 001 percent). These variations provide a snapshot of the distribution of matter when the universe was 380,000 years old, before galaxies and stars were formed.

5). Robotic space missions clearly have led, and will continue to lead, to paradigm-altering discoveries about Earth, our solar system, and the universe beyond, and about fundamental physical laws. The report added that human space exploration—for example, an eventual mission to Mars—can also be transformative in changing humanity’s sense of its place in the universe. S. leadership in science and technology. The 2005 report provided advice on setting priorities as follows: The issue then is not what to pursue ultimately, but rather what to pursue first, and then how to prioritize what follows.

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