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Openhearted Rebel


MARTIAN MARATHON: More than 8 years after landing on the Red Planet, Mars rover Opportunity is still running. Indeed, mission planners say the tireless robot is poised to complete a full marathon–the first ever long-distance race on an alien planet. [full story] [video]


ALMOST X-FLARE : Sunspot complex AR1520-1521 erupted again on July 19th, this time producing an M7-class solar flare that almost crossed the threshold into X-territory. NASA’s Solar Dynamics Observatory recorded the extreme ultraviolet flash:

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