Asteroid 2016 XW20 to flyby Earth on December 13
Newly discovered asteroid 2016 XW20 will flyby Earth on December 13, 2016, passing just 1.8 LD (691 200 km / 429 491 miles) from the surface of our planet at a relative velocity of 8.42 km/s. The closest approach is expected at 00:18 UTC. This astero
