NASA

NASA's mission to touch the sun launches soon

<p>Prof. Emeritus Eugene Parker discusses the Parker Solar Probe</p>


Photo gallery

<p>Photos: Remembering Eugene Parker, 1927-2022</p>

The solar wind, explained

First proposed in the 1950s by UChicago physicist Eugene Parker, the solar wind is a flow of particles that comes off the sun at about one million miles an hour.