CAPE CANAVERAL, Fla. (AP) NASA's sun-skimming spacecraft is surprising scientists with its unprecedented close views of our star.
Scientists said Wednesday they've observed bursts of energetic particles never before seen on such a small scale and switchback-like reversals in the out-flowing solar magnetic field.
They also finally have evidence of a dust-free zone encircling the sun. Farther out, there's so much dust from vaporizing comets and asteroids that a viewfinder on one instrument was pierced by a grain.
Launched in 2018, the Parker Solar Probe has come within 15 million miles of the sun and will get increasingly closer over the next six years.