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A startup is developing a 100-gigawatt laser to propel a probe to another star system. That may be powerful enough to 'ignite an entire city.'

A startup is developing a 100-gigawatt laser to propel a probe to another star system. That may be powerful enough to 'ignite an entire city.'

Business Insider - Dave Mosher

An initiative called Breakthrough Starshot wants to explore another star system using ultra-powerful laser beams and wafer-thin spaceships. It's a goal that sounds so fantastic, you'd be forgiven for dismissing it as science fiction. But it's no joke, and the project's chief engineer says millions …

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