Parker Solar Probe
作者:toutatis
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The Parker Solar Probe is a NASA mission launched in 2018 intended on making close observations of the outer corona of the Sun. After seven flybys of Venus, by 2025 it will approach to within 9.86 solar radii (6.9 million km) from the center of the Sun, and will travel at a speed of 690,000 km/h on each perihelion
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