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Scientists Race to Map Dangerous Ultrasmall Space Junk


Scientists Race to Map Dangerous Ultrasmall Space Junk An ambitious U.S. government program is working to detect and track millions of tiny space junk pieces—down to the size of a sand grain—throughout low-Earth orbit and beyond. The U.S. Air Force monitors roughly 25,000 pieces of trash in low-Earth orbit (LEO), the busiest and most crowded region, which encompasses orbits of 2,000 kilometers or less in altitude. Current telescopes and radar technology limit the smallest trackable pieces to approximately 10 centimeters across, about the size of a bagel.   More



(Source: Scientific American - Jul 31)

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