Earth had a close encounter on Monday 17 February 2014 (EST) evening as an asteroid as big as three football fields (measuring 270 meters) whizzed by at 27,000 mph. Fortunately, the asteroid was never a threat, it missed our planet by 2.6 million kilometer distance or 0.018 Astronomical Unit (AU).
Slooh that tracks hazardous objects such as comets and asteroids had broadcasted the asteroid movement through its remote controlled telescope on the Canary Islands, off the northwest coast of Africa. However, the images the site showed came from a telescope located in Dubai. They showed a dark night sky filled with stars but with no asteroid visible.
A year back, two asteroids events had occurred on 15 February 2013, when a 30 meter wide asteroid 2012 DA14 buzzed the Earth. Coincidentally, the same day, a small 60 foot asteroid collided with Earth and exploded over the Russian city of Chelyabinsk with a force as huge as 30 nuclear bombs.
This NASA graphic shows the orbits of all the known Potentially Hazardous Asteroids (PHAs), numbering over 1,400 as of early 2013. Shown here is a close-up of the orbits overlaid on the orbits of Earth and other inner planets. Credit: NASA/JPL-Caltech
Source: Slooh.com, NASA
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