A LARGE metallic ball has fallen out of the sky on a remote grassland in Namibia, prompting baffled authorities to contact NASA and the European space agency.
The hollow ball with a circumference of 1.1 metres was found near a village in the north of the country some 750 km from the capital, Windhoek, according to police forensics director Paul Ludik.
Locals had heard several small explosions a few days beforehand, he said.
With a diameter of 35 cm, the ball has a rough surface and appears to consist of "two halves welded together".
It was made of a "metal alloy known to man" and weighed six kilograms, said Ludik.
It was found 18 metres from its landing spot, a hole 33 centimetres deep and 3.8 metres wide.
Several such balls have dropped in southern Africa, Australia and Latin America in the past 20 years, authorities found in an internet search.
The sphere was discovered mid-November, but authorities first did tests before announcing the find.
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