Parker Solar Probe races to a historic close pass of the Sun

1 day ago
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Parker Solar Probe is basically science’s daredevil: ‘How close can we get to the Sun before everything melts?’ Closer than Mercury, apparently. It races to a historic close pass of the Sun, protected by a 4.5-inch heat shield. Temp outside: 1 million°F. Temp inside: a cool 85°F.

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