Asteroid 2017 UJ2 flew past Earth at 0.05 LD, second closest of the year
A small asteroid designated 2017 UJ2 flew past Earth at a very close distance of 0.05 LD or 0.00012 AU (~17 951 km / 11 154 miles) from the center of Earth on October 20, 2017, one day before it was discovered. This is the 42nd known asteroid to flyby Earth within 1…