Q&A

Can you hear a meteor?

Meteors are able to create sound waves. As they tear their way through the atmosphere they can create a sonic boom in the same way a fast-moving aeroplane does.

Space wars: the new arms race above our heads

Forget the traditional battlegrounds of land, sea and air. Rapid developments in technology and our reliance on satellites for everything from communication to navigation are pushing conflicts into a new arena: outer space.

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