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The usually pinkish-red color of Mars's sky turns a violet color on occasion, due to the presence of water ice clouds with very small ice particles.
Image from en:Mars Pathfinder
These clouds from Sol 15 have a new look. As water ice clouds cover the sky, the sky takes on a more bluish cast. This is because small particles (perhaps a tenth the size of the martian dust, or one-thousandth the thickness of a human hair) are bright in blue light, but almost invisible in red light. Thus, scientists expect that the ice particles in the clouds are very small. The clouds were imaged by the Imager for Mars Pathfinder (IMP).
Mars Pathfinder is the second in NASA's Discovery program of low-cost spacecraft with highly focused science goals. The Jet Propulsion Laboratory, Pasadena, CA, developed and manages the Mars Pathfinder mission for NASA's Office of Space Science, Washington, D.C. JPL is a division of the California Institute of Technology (Caltech). The Imager for Mars Pathfinder (IMP) was developed by the University of Arizona Lunar and Planetary Laboratory under contract to JPL. Peter Smith is the Principal Investigator.
|Date||2004-07-05 (original upload date)|
|Source||Originally from en.wikipedia; description page is/was here.|
|Author||Original uploader was Curps at en.wikipedia|
(Reusing this file)
|This file is in the public domain because it was created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
Original upload log
(All user names refer to en.wikipedia)
- 2004-07-05 08:49 Curps 248×240×8 (2638 bytes) Courtesy: NASA/JPL
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