A newly discovered asteroid 2017 DF will flyby Earth at a distance of 2.09 LD (802 560 km / 498 687 miles) at 09:27 UTC on February 19, 2017. Asteroid 2017 DF has an estimated diameter between 13 and 28 m (43 – 92 feet) and belongs to Apollo group of asteroids. It…… Read more »