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Waspie_Dwarf

Reducing debris threat

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Reducing debris threat from satellite batteries

13 March 2014 Across a satellite’s working life, batteries keep the craft’s heart beating whenever it leaves sunlight. But after its mission ends, those same batteries may threaten catastrophe.

Space debris mitigation rules require the complete deactivation of electrical power sources aboard a satellite on retirement, in order to guard against explosive accidents that might produce fresh debris dangerous to other satellites.

Now a new study by ESA’s Clean Space initiative – tasked with reducing the space industry’s environmental impacts on both Earth and space – aims to evaluate battery behaviour after a satellite shuts down, assessing the risk of breakup and ensuring full ‘passivation’.

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