Asteroid 2018 UA flew past Earth at 0.04 LD, 4th closest on record

Asteroid 2018 UA flew past Earth at 0.04 LD, 4th closest on record

A newly discovered asteroid designated 2018 UA flew past Earth at a very close distance of about 0.04 LD / 9.14e-5 AU (15 360 km / 9 544 miles) above Earth's surface. This is the closest known asteroid to flyby Earth since the start of the year and 4th closest…