NASA / GSFC / SCIENCE PHOTO LIBRARY NASA / GSFC / SCIENCE PHOTO LIBRARY
Solar storm stripping Martian atmosphere, illustration. Charged particles from a solar storm stripping away ions from Mars' atmosphere. This is one of the processes of Martian atmosphere loss being studied by NASA's MAVEN mission, beginning in 2014. Unlike Earth, Mars lacks a global magnetic field that could deflect charged particles emanating from the Sun.
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