Astronomy & Space

Understanding How Martian Auroras Are Made

How the science connects

Solar windPlanetary atmosphe…Aurora

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NASA's MAVEN mission has discovered that certain auroras on Mars form through mechanisms similar to those that create Earth's auroras. The study reveals that charged particles from solar storms interact with Mars' atmosphere, stripping away atmospheric particles while simultaneously generating aurora-like phenomena. This finding helps explain both atmospheric loss processes and aurora formation on the Red Planet.


Understanding Mars' atmospheric loss mechanisms is critical for determining the planet's historical habitability and climate evolution. These findings also contribute to our broader knowledge of how planetary atmospheres interact with solar activity, which has implications for assessing the habitability of exoplanets and protecting future Mars missions.


In this illustration, yellow charged particles from the Sun strip off rainbow-colored charged particles from Mars (in the foreground). The Martian particles stream away from the planet, toward the viewer and off to the right of the image. The Sun illuminates the far side of Mars.
NASA

This July 23, 2026, illustration depicts charged particles from a solar storm stripping away charged particles of Mars’ atmosphere, one of the processes of Martian atmosphere loss studied by NASA’s MAVEN (Mars Atmosphere and Volatile Evolution) mission. NASA MAVEN mission scientists have found that certain types of auroras on Mars form in a similar way to Earth-based auroras.

Read more about this discovery.

Image credit: NASA

Source: Understanding How Martian Auroras Are Made