A shield to get within 10000km of the Sun

A NASA NIAC study is developing the technology to get within 0.5 solar radii of the sun. The goal is to scatter 99.9% of the solar radiation. A solar radius is 700K kilometers. They want to get to 0 to 10K kilometers away from the surface of the sun.

In 2018 the Parker Solar Probe launched, planning to approach the Sun to within 8.5 solar radii of its surface. This is 7x closer than any previous mission, allowing first-time particle, radiation, and magnetic field measurements of the Sun’s corona.

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