A meteor lit up the sky over Botswana, Africa, early Saturday evening.

Scientists discovered the six-foot-wide asteroid just hours before it reached Earth.

NASA tracks 90 per cent of near-Earth objects that are larger than 150 metres ( 460 feet) in diameter, which means it misses lots of the smaller ones until they’re close by.

This most recent rock, called 2018 LA, was spotted on 2 June by the Catalina Sky Survey in the US.

At that point, the asteroid was almost as near as the moon, according to a release.

Researchers realised it was on a collision course with Earth, and were able to predict a few locations over a large swath of the planet’s surface.

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