Solar Wind 'Stopped Blowing' On Mars For 2 Days
For two days in the December the solar wind suddenly stop on Mars and its atmosphere on the sun-facing side swelled "by nearly four times its usual size — from its usual 497 miles (800 km) to over 1,864 miles (3,000 km)".
Credit: NASA Goddard Space Flight Center
Credit: NASA Goddard Space Flight Center