A newly-discovered asteroid designated 2021 SP flew past Earth at a distance of 0.03 LD or 0.0000943 AU (14 107 km / 8 765 miles) from the center of our planet or about 7 700 km (4 780 miles) from the surface on September 17, 2021. This is now the closest asteroid…… Read more »
Click here for original story, Asteroid 2021 SP flew past Earth at just 0.03 LD – closest flyby in 2021, 10th closest on record
Source: The Watchers » Space News