A Nasa spacecraft is rocketing towards the sun on a quest to get closer to our star than anything ever sent before. The Parker solar probe will fly straight through the wispy edges of the corona, or outer solar atmosphere, which was visible during last August’s total solar eclipse. It eventually will get within 3.8m miles (6.1m km) of the sun’s surface, staying comfortably cool despite the extreme heat and radiation, allowing scientists to explore the sun in a way never before possible.
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