Asteroids 2019 YS and YB flew past Earth at 0.17 and 0.43 LD, respectively
Two newly discovered asteroids designated 2019 YS and 2019 YB flew past Earth within 1 lunar distance on December 18, 2019. Since the start of the year, our sky surveys have discovered a total of 75 <1LD asteroids. 2019 YS flew past us at a distance of 0.17 LD /…