That's not the USS Vengeance going supercritical, thankfully, just the massive 4.6 billion-year-old nuclear fusion reaction that is our Sun. A member of Expedition 36, the newly installed ISS crew, snapped this impressive shot as the station recently passed over Minnesota.
Commander Hadfield might be back on Earth, but that doesn't mean the magic of space is going to stop any time soon. [NASA]
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