Massive Clouds Shot 100 Miles Into The Mars Atmosphere, And No One Knows Why

Plumes that reached over 100 miles above the surface of Mars, reported by citizen scientist astronomers in March and April 2012, continue to puzzle scientists. In the past, similar events had been seen, but only up to around 50 miles.  The features developed in less than 10 hours, covering an area of up to 1000 x 500 kilometers, and remained visible for around 10 days, changing their structure from day to day. None of the spacecraft orbiting Mars saw the features because of their viewing geometries and illumination conditions at the time but citizen scientists and their telescopes did.  read more

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