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Path Of Totality: The Movie

Total solar eclipses are of special interest to astronomers, because it is the only time the sun's corona can be seen from the Earth's surface.
by Staff Writers
Washington DC (SPX) Sep 24, 2007
On March 29, 2006, a NASA-led science expedition traveled to Tripoli and then the Sahara desert to witness and study -- first hand -- a total solar eclipse. This international expedition was an unprecedented collaboration with Libyan scientists and researchers from across the globe.

NASA's Office of Public Affairs, Washington, D.C., produced a high definition video documentary of the expedition and its interactions with Libya academics and government officials. Entitled Path of Totality, the film debuted on Sept. 20, 2007, in Washington.

The expedition was funded and coordinated by the Heliophysics offices at NASA Headquarters, Washington, the Goddard Space Flight Center, Greenbelt, Md., and the U.S. Department of State. The Heliophysics Program seeks to explore the Sun-Earth system to understand the sun and its effects on Earth, the solar system, and the space environmental conditions that will be experienced by explorers, and to demonstrate technologies that can improve future operational systems.

Total solar eclipses are of special interest to astronomers, because it is the only time the sun's corona can be seen from the Earth's surface. Observers can detect and measure properties of the sun's outer atmosphere, such as temperature, density and chemical composition when the light of the disk is blocked by the moon.

Solar eclipses happen when the new moon passes in front of the sun. They don't happen very often, since the tilted orbits of the sun, moon and Earth make their alignment rare. Only about once a year, when the moon passes directly in front of the sun and appears the same size or larger than the sun, do we have a total eclipse somewhere on Earth.

The 2006 eclipse was special because the total phase lasted more than four minutes at the center of the path. Most last only a minute or two. The next total solar eclipse is August 1, 2008. It will be seen in northern Canada, Greenland, Siberia, Mongolia and northern China. It will last about 2 minutes. The next total solar eclipse visible from the United States won't happen until August 21, 2017.

Schools, museums and the media worldwide witnessed the eclipse via NASA webcasts, podcasts and live video feeds as part of the Sun-Earth Day program.

Related Links
Watch 'Path to Totality' Video
View 2006 Eclipse Page
Solar and Lunar Eclipses at Skynightly

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Total Lunar Eclipse Draws Attention Back To The Moon
Greenbelt MD (SPX) Aug 22, 2007
As August draws to an end, watchers of the night sky will be in for a treat. In the early morning hours of August 28, sky watchers across much of the world can look on as the Moon crosses in to the shadow of the Earth, becoming completely immersed for one-hour and 30 minutes, a period of time much longer than most typical lunar eclipses. In fact, this eclipse will be the deepest and longest in 7 years.

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