The Parker Solar Probe hit 430,000 mph during its 25th flyby and survives skimming the Sun's 2,500-degree corona thanks to a four-and-a-half-inch slab of carbon foam that keeps its instruments at room temperature.
The Parker Solar Probe is currently orbiting the Sun at roughly 430,000 miles per hour, a velocity that would carry it from the Atlantic to the Pacific coast of the United States in about twenty seco… [+10485 chars]