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The
Radiation Assessment Detector (RAD) on NASA's Curiosity Mars rover monitors high-energy atomic and subatomic particles coming from the sun, distant supernovae and other sources. RAD measured the flux of this energetic-particle radiation while shielded inside the Mars Science Laboratory spacecraft
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Southwest
Research Institute, in San Antonio, Texas, and Boulder, Colo., supplied and operates the RAD instrument in collaboration with Germany's national aerospace research center, Deutsches Zentrum für Luft- und Raumfahrt. NASA's Jet Propulsion Laboratory, a division of the California Institute of
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Galactic cosmic rays are a variable shower of charged particles coming from supernova explosions and other events extremely far from our solar system. The sun is the other main source of energetic particles this investigation detects and characterizes. The sun spews electrons, protons and heavier
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The spacecraft carrying RAD departed the influence of Earth's magnetic field early during the flight from Earth to Mars. Earth's magnetic field and atmosphere provide effective shielding against the possible deadly effects of galactic cosmic rays and solar particle events. Mars lacks a global
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NASA's Jet
Propulsion Laboratory, a division of the California Institute of Technology, Pasadena, manages the Mars Science Laboratory Project for NASA's Science Mission Directorate, Washington. JPL designed and built the rover.
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Data from RAD during the trip to Mars and on the surface of Mars provide important aid to planning for astronaut safety in design of possible human missions to Mars.
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This illustration depicts the two main types of radiation that RAD monitors, and how the magnetic field around Earth affects the radiation in space near Earth.
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Technology in
Pasadena, manages the Mars Science Laboratory Project and the mission's Curiosity rover for NASA's Science Mission Directorate in Washington.
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joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use.
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on the flight delivering
Curiosity from Earth to Mars, and continues to monitor the flux on the surface of Mars.
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states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."
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ions in "solar particle events" fed by solar flares and ejections of matter from the sun's corona.
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magnetic field and has only about 1 percent as much atmosphere as Earth does.
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Click on a date/time to view the file as it appeared at that time.
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data may be copyrighted if they are not explicitly produced by the
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PIA16938: Sources of
Ionizing Radiation in Interplanetary Space
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For more information about
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The NASA website hosts a large number of images from the
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Add a one-line explanation of what this file represents
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in the United States because it was solely created by
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
