“We are waging war” against the rebels, Chad’s ruling military junta says, after an offer of talks.
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Space junk map tracks 200 ‘ticking time bombs’
Sun Apr 25 , 2021
Thousands of human-made objects orbit earth and the majority of them no longer work. There’s a risk this space debris could collide with functioning satellites, which provide vital services like GPS and weather warnings. To track and predict its behaviour, Prof Moriba Jah and his colleagues built AstriaGraph – a […]
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