NASA's Retired Sun-Studying Satellite Set to Crash into Earth with Risk to Humans
TL;DR Summary
The Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI), a 660-pound NASA spacecraft launched in 2002 to study solar flares and coronal mass ejections from the sun, is set to crash onto Earth on Wednesday after being retired in 2018 due to communications difficulties. NASA says the risk of harm to people on Earth is low, and most of the spacecraft will burn up upon re-entry, but some components are expected to survive. RHESSI recorded more than 100,000 X-ray events and helped improve measurements of the sun's shape.
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