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VENUS
 Three-dimensional
perspective views of Venusian Terrains composed of synthetic-aperature
radar images merged with altimetry data from the Magellan spacecraft
(click to enlarge). The view shows
part of Galindo (V40) quadrangle looking north; 200 km wide Nagavonyi
Corona is in the foreground. Coronae are roughly circular, volcanic
features believed to form over hot upwellings of magma within the
Venusian mantle. Click
here for more.
This
is a NASA Hubble Space Telescope ultraviolet-light image of the
planet Venus, taken on January 24 1995, when Venus was at a distance
of 70.6 million miles from Earth. Venus is covered with clouds made
of sulfuric acid, rather than the water-vapor clouds found on Earth.
These clouds permanently shroud Venus' volcanic surface, which has
been radar mapped by spacecraft and from Earth-based telescope.
Click
here for more.
 The
hemispheric view of Venus, is revealed by more than a decade of
radar investigations culminating in the 1990-1994 Magellan mission.
(click to enlarge). The mosaic of
Magellan images was processed to improve contrast and to emphasize
small features, and was color-coded to represent elevation. Gaps
in the elevation data from the Magellan radar altimeter were filled
with altimetry from the Venera spacecraft and the U.S. Pioneer Venus
missions. Click
here for more.
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