‘We Are Preparing To Make History’: NASA’s Parker Solar Probe Gears Up For Epic Sun Flyby On Christmas Eve.
On Christmas Eve, NASA’s Parker Solar Probe will swoop within 3.8 million miles (6.1 million kilometers) of the sun’s surface at a whopping 430,000 mph (690,000 kph), breaking its own records for speed and closest approach to our star. The spacecraft, roughly the size of a small car, completed its final swing past Venus last …