Asteroid 2021 UA1 flew past Earth at just 0.02 LD – 3rd closest on record
A newly-discovered asteroid designated as 2021 UA1 flew past Earth at a very close distance of just 0.02 LD / 0.0000630 AU (9 424 km / 5 856 miles) from the center of our planet at 03:07 UTC on October 25, 2021. This is about 3 000 km (1 800 miles) from the surface….