This is the first WorldWind release where we did not have any NASA involvement.

NASA World Wind - Zoom any place on Earth
World Wind lets you zoom from satelliteia
World Wind lets PC users zoom from satellite altitude into any place on the
globe. Leveraging Landsat satellite imagery and Shuttle Radar Topography
Mission data, World Wind lets you experience Earth terrain in visually rich 3D,
just as if you were really there.
Virtually visit any place in the world. Look across the Andes, into the Grand
Canyon, over the Alps, or along the African Sahara.
World Wind allows any user to zoom from satellite altitude into any place on
Earth, leveraging high resolution LandSat imagery and SRTM elevation data to
experience Earth in visually rich 3D, just as if they were really there.
Particular focus was put into the ease of usability so people of all ages can
enjoy World Wind. All one needs to control World Wind is a two button mouse.