Hi all:
World Wind, an "Open Source" 3D interactive world viewer,
was created by NASA's Learning Technologies project, and released in mid-2004.
It is now developed by NASA staff and open source community developers.
World Wind allows any user to zoom from outer space into any place on Earth.
World Wind uses satellite imagery and elevation data to allow users to
experience Earth terrain
in visually rich 3D, just as if they were really there.
Virtually visit anyplace in the world.
Supported Worlds are
* Earth The planet we live on.
* Moon Usually the brightest object in the night sky.
* Venus and Mars Our inner and outer neighbours in solar system
* Jupiter The king of solar system planets.
* SDSS Nothing less than the universe - the sky with stars and galaxies.
For more info and to download the application, please visit
http://www.worldwindcentral.com/wiki/Main_page
thanks
Saifi.