Asteroid 2017 SS12 flew past Earth at 0.67 LD, one day before discovery
A newly discovered asteroid designated 2017 SS12 flew past Earth at 0.67 LD (~ 257 280 km / 159 866 miles) at 15:33 UTC on September 24, 2017, one day before it was discovered. This is the 33rd known asteroid to flyby Earth within 1 lunar distance since the start of…