What is it and what does it mean? - With companies like Elon Musk’s Space X lining up to lend a hand and a four-star Space ...

The Conversation U.S. asked Iain Boyd, an aerospace engineer and director of the Center for National Security Initiatives at ...

An idea for a space-based boost-phase defence system called Brilliant Pebbles was proposed towards the end of the 1980s.

The anti-missile shield that Donald Trump wants to put in the sky could protect North America from attacks. But it could also ...

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