Figure 8-42 Recent Impacts on the Moon The locations A–F are places on the Moon where impacts were observed from Earth in 1999 during the Leonid meteor shower. The impacting bodies hit the Moon at around 260,000 km/h (160,000 mi/h) and had masses of between 1 and 10 kg (2.2 and 22 lb). Each impact created a short-lived cloud that momentarily heated to between 5 × 104 and 10 × 104 K, much hotter than the surface of the Sun.