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Half-kilometer Asteroid to Pass Closely By on January 26

14 Jan 2015, 01:27 UTC
Half-kilometer Asteroid to Pass Closely By on January 26
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Just under two weeks from now, on Monday, Jan. 26, the 1/3-mile (0.5-km) -wide potentially hazardous asteroid 357439 (2004 BL86) will pass by Earth at 3.1 lunar distances, or 739,680 miles (1,190,400 km). While this may sound like a long way off, in the grand scheme of things it’s still a close pass… especially for […]

Animation of 2004 BL86’s close pass on Jan. 26, 2015. (NASA/JPL)
Just under two weeks from now, on Monday, Jan. 26, the 1/3-mile (0.5-km) -wide potentially hazardous asteroid 357439 (2004 BL86) will pass by Earth at 3.1 lunar distances, or 739,680 miles (1,190,400 km). While this may sound like a long way off, in the grand scheme of things it’s still a close pass… especially for an object as wide as the Burj Khalifa is high!
Don’t worry though – there’s no risk of an impact from 2004 BL86. It will go sailing by harmlessly at a relative 15.6 km/s velocity (that is, 34,900 mph) back out into the Solar System, just another rocky reminder that Earth is definitely not alone out here.
And, thankfully, astronomers will be watching.

“Monday, January 26 will be the closest asteroid 2004 BL86 will get to Earth for ...

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