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Fragments Of Billions-Year-Old Asteroid Delivered Safely To Earth
The probe, superheated to incandescence by entry speeds in excess of 27,000 miles per hour, streaked over the skies of San Francisco.
September 25, 2023
SAN FRANCISCO -- Lockheed engineers erupted in applause as Osiris-REx became the first U.S. spacecraft to bring samples from an asteroid back to earth.
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The drama unfolded early Sunday morning as the probe, superheated to incandescence by entry speeds in excess of 27,000 miles per hour, streaked over the skies of San Francisco, headed for the Utah desert.
Reaching maximum G-force deceleration with a maximum temperature 5,000° F, the probe slowed dramatically in mere minutes to a leisurely 11 mph after the drogue parachutes successfully deployed, setting the probe down with a gentle bump thanks to recent rains which softened the desert ground.
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NASA
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