Asteroid 2020 YS4 flew past Earth at 0.25 LD
A newly-discovered asteroid designated 2020 YS4 flew past Earth at a distance of 0.25 LD / 0.00064 AU (95 742 km / 59 491 miles) at 22:27 UTC on December 28, 2020. This is the 107th known asteroid to flyby Earth within 1 lunar distance since the start of the year…