Asteroid 2020 CD3 flew past Earth at just 0.12 LD – Earth’s second ‘mini-moon’
A newly-discovered asteroid designated 2020 CD3 flew past Earth at a distance of just 0.12 LD / 0.00031 AU (46 375 km / 28 816 miles) on February 13, 2020. This is the 18th known asteroid to flyby Earth within 1 lunar distance since the start of the year and the…