This colossal 'Martian sunspot' is so big it was seen from Mars. Now it's facing Earth (photo & video)

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An enormous sunspot that was seen from the surface of Mars last week has now turned to face Earth, bringing an increased chance of unsettled space weather with Earth in the firing line.

This colossal 'Martian sunspot' is so big it was seen from Mars. Now it's facing Earth (photo & video) : Read more