Colossal 'Martian sunspot' is so big it was seen from Mars. Now it's facing Earth.
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Colossal 'Martian sunspot' is so big it was seen from Mars. Now it's facing Earth.

A group of sunspots measuring more than 15 times the diameter of Earth was imaged by NASA's Perseverance Rover last week; now‚ the spots are pointed toward Earth‚ with strong flares possible.