A New Map Shows how Solar Winds Rain Down Everywhere on Mars - by ScottyJ_PhD
Proton auroras occur on Earth too, but they can’t be seen by human eyes, and are rarer due to Earth’s stronger magnetic field.
It took observations from both Maven and EMM to understand what was going on. EMM’s Emirates Mars Ultraviolet Spectrograph instrument is constantly scanning the upper astmosphere of the planet, watching for evidence of atmospheric escape into space and changes in composition. Its detector is perfect for catching the ultraviolet light caused by the proton aurora.
When EMM’s data was compared with MAVEN’s, it was clear that the patchy proton aurora was a result of a highly disturbed plasma environment at the time of the events.
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