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After an Asteroid Zoomed By Earth Monday, Scientists Made Curious Observation in Radar Images

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After examining the first radar images of the asteroid that raced by Earth Monday, scientists have determined that the space rock had its own small moon, NASA said in a statement.

The moon was about 230-feet across, the space agency said, noting that radar is a powerful tool for studying key aspects of asteroids.

The 1,100-foot wide asteroid flew by our planet at 11:19 a.m. ET, marking the last time a known asteroid that size will pass by our planet until 2027.

The radar images were captured by NASA's 230-foot-wide Deep Space Network antenna which is located in Goldstone, California.

The resolution on the photographs is 13 feet per pixel, the space agency said.

(H/T: Mashable)

Follow Oliver Darcy (@oliverdarcy) on Twitter

Featured image and gif courtesy of NASA.

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