A total eclipse of the sun seen from the backside of Saturn. The image is a composite assembled from images taken by the Cassini spacecraft on Sept. 15, 2006.
The jury is still out on whether hydrogen will ultimately be our environmental savior, replacing the fossil fuels responsible for global warming and pollution. The cost of producing fuel cells, and the lack of refueling network. Are major hurdles
2 University of Iowa space physicists report that the Voyager 2 spacecraft,which has been traveling outward from the Sun for 31 years,has made the first direct observations of the solar wind termination shock.At the termination shock the solar wind,which
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