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  Buckle up! Large three-mile-wide asteroid Florence to whiz past Earth on Friday

  World | Sep 01, 2017, 03:12 PM IST

  NASA says Asteroid Florence, a large near-Earth asteroid, will pass by Earth on at 5.35 PM IST Friday and will be visible through telescopes for several nights

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  NASA ready for date with rare Mars comet flyby Oct 19

  World | Oct 10, 2014, 01:03 PM IST

  Washington: NASA's extensive fleet of science assets, particularly those orbiting and roving Mars, are all set to to click and study a once-in-a-lifetime comet flyby Oct 19.Comet C/2013 A1, also known as comet Siding Spring,