우주에서 떨어진 쓰레기 조각

1센치도 안되는 (3.6 밀리) 알루미늄 조각이 하늘에서 떨어졌는데, 속도가 초속 6,860 미터였데여. 이게 떨어지면서 알루미늄 덩어리를 쳤는데 이런 빵구가 났답니다.

An aluminum speck the size of a sesame seed (3.6 mm across) struck a solid aluminum block at 6,860 meters per second. That’s over 15,000 miles per hour. It’s a powerful reminder of how even the smallest piece of space debris (just the size of a sesame seed!) can cause serious damage in orbit.