A space rock slammed into the moon just days ago, lighting up at the surface so brightly, it was briefly visible from Earth through telescopes.

Daichi Fujii, curator at Hiratsuka City Museum in Japan, recorded the impact. Fujii, who started looking for lunar impact flashes in 2011, keeps an eye fixed on the moon through several 8-inch aperture telescopes, mostly based in Hiratsuka, about midway between Tokyo and Mount Fuji. What makes this new sighting astounding is that it was the second flash he had captured hitting the moon since last Thursday.

The latest impact happened Nov. 1 near Oceanus Procellarum, a large, dark lava plain whose name means Ocean of Storms . The event followed a bright burst just two days earlier near the Gassendi Crater. Each blink of light lasted a

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