Watch National Geographic Documentaries online: Episode 30 Asteroid That Hit Earth

A first in the history of space exploration, recently scientists spotted and tracked an asteroid on a collision course with Earth. About the size of a truck, the asteroid slammed into the Nubian Desert in Sudan, and landed in nearly the exact location and only a few seconds from the time scientists had predicted. In Asteroid That Hit Earth, premiering on Friday 23 July at 9pm, join NASA experts and researchers as they examine the remnants of the asteroid to unlock the clues to help us prevent or simply survive future asteroid impacts.

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