One astronomical section describes a volume of space between a Earth and a Sun – about 93 million miles (149 million km).
Asteroid VA2 condensed this stretch down currently to only 446,187 miles (718,069 km).
The stretch is roughly homogeneous to 1.87-times a stretch from a Earth to a Moon.
According to a JPL, a asteroid is speeding by a solar complement during speeds of 14,920mph or 6.67km per second.
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Article source: https://www.express.co.uk/news/science/1042742/NASA-asteroid-warning-Asteroid-2018-VA2-Earth-Close-Approach