<div>A mysterious metal ball that thudded to a remote grassland in Namibia last month has been identified as a hydrazine tank from an unmanned rocket.</div><div>u00a0</div><div>There was wide speculation after a bizarre object, made from a "metal alloy known to man", fell out of the sky in to the African nation.</div><div>u00a0</div><div>Authorities were so baffled by the find NASA and the European Space Agency were called in to investigate.u00a0After the investigation went public, a commentator on tech site Gawker identified the ball as 'a piece of an unmanned rocket,' News.com.au reports.</div><div>u00a0</div><div>"For anyone wondering what it actually is, it''s likely a 39-litre hydrazine bladder tank (based on its apparent size; there are also much larger hydrazine tanks). They''re used on unmanned rockets for satellite launches, which would explain why they''re falling down in such a specific geographic footprint," the commentator said.</div><div>u00a0</div><div>According to the report, the European space company Astrium told Gawker that the tanks are found in the Ariane 5 rocket, which are frequently used by the European Space Agency to launch satellites.u00a0Several similar balls have also dropped in southern Africa, Australia and Latin America in the past 20 years.u00a0</div>        

A mysterious metal ball that thudded to a remote grassland in Namibia last month has been identified as a hydrazine tank from an unmanned rocket.

'Mysterious' Namibian 'space ball' turns out to be fuel tank from unmanned rocket

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Home / News / World News / Article / 'Mysterious' Namibian 'space ball' turns out to be fuel tank from unmanned rocket

'Mysterious' Namibian 'space ball' turns out to be fuel tank from unmanned rocket

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