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All Images

Discovery
Monitoring and Predicting Extraterrestrial Weather

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Composite of two Hubble Space Telescope images of a global dust storm on Mars.

Two Hubble Space Telescope storm watch images from late June and early September 2001 offer dramatically contrasting views of the Martian surface. At left, the onset of smaller "seed" storms can be seen near the Hellas basin (lower right edge of Mars) and the northern polar cap. A similar surface view at right, taken over two months later, shows the fully developed extent of the obscuring global dust storm.

Credit: J. Bell (Cornell), M. Wolff (Space Science Inst.), Hubble Heritage Team (STScI / AURA), NASA


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Photos from the Huygens probe descending onto the surface of Saturn's moon, Titan.

Taken on January 14, 2005, these views show the dramatic descent of the Huygens probe to the surface of Saturn's moon, Titan, one of the most distant touchdowns ever made by a spacecraft. Part of the European Space Agency-NASA-University of Arizona effort to explore Titan, Saturn's largest moon, the images were put together with data collected by the Descent Imager/Spectral Radiometer instrument during the probe's 147-minute plunge through Titan's thick orange-brown atmosphere to a soft, sandy riverbed.

Credit: ESA/NASA/JPL/University of Arizona


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Photo of the Phoenix lander descending through the Martian atmosphere on a parachute.

An image of the Phoenix lander descending through the Martian atmosphere on a parachute on May 25, 2008. The image was captured by the Mars Reconnaissance Orbiter HiRISE camera. Planning for spacecraft entry required detailed modeling of Martian atmospheric conditions.

Credit: NASA/JPL/University of Arizona


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Illustration of a global simulation of wind stress on the surface of Mars

A global simulation of wind stress (i.e., how hard the wind is blowing) on the surface of Mars. Scientists studying Mars use this information to identify locations on the planet's surface where dust will likely get lifted.

Credit: NASA


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