Observations from three major world observatories confirm that a very rare binary asteroid came within a cosmic whisker of Earth. On June 21, 2017, the near-Earth asteroid 2017 YE5 (actually two asteroids 3,000 ft (900 m) in diameter orbiting one another) passed within 3.7 million (6 million km) of our planet for the first time in 170 years before heading out into deep space.
.. Continue Reading Rare double asteroid scoots by EarthCategory: Space
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from New Atlas https://ift.tt/2uvOCB4
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