NASA's Parker Solar Probe Embarks on Record-Breaking Christmas Eve Flyby
Briefly

"Now it is about to perform its final, closest passes, skimming inside the solar atmosphere like never before. It's a big moment," says Yanping Guo, a space mission designer at the JHUAPL.
"Parker will fly just 6.1 million kilometers above the surface of the sun, or 9.86 solar radii from the sun's center, ten times closer than Mercury orbits the star."
"During its flyby, Parker will be moving fast enough to travel from London to Paris in less than two seconds... relativistic effects such as time dilation... may register on the spacecraft's instruments."
Read at www.scientificamerican.com
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