Are these pictures showing an eruption of Arsia Mons, a Mars volcano thought to be inactive?
This image captured by the Mars Express orbiter of ESA on October 18, 2018 really looks like an ash and dust plume coming out of a volcano… The white ‘plume’ or trail is, in fact, an orographic cloud.
These are clouds of water ice that condense on the summit of Arsia Mons, one of the great volcanoes of Mars. They are very common over Arsia at this time of the year. Mountains on Earth can also produce the same phenomenon.
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