4.8 km wide asteroid to flyby Earth at 57.2 LD
A 4.8 km (2.98 miles) wide asteroid named 5143 Heracles will make a close approach to Earth on November 28, 2016, passing 57.2 LD (21.9 million km / 13.6 million miles) from the surface. Heracles will safely flyby our planet at 23:29 UTC at a relative velocity of…