Space Junk is a Problem. Is a Laser Cannon the Solution?

There’s a general rule in media reporting called Betteridge’s Law: Whenever a headline poses a question–especially a sensational one–the answer is “no.” I’m going to break the law this time. An orbiting laser cannon is not only an intriguing technology but, yes, it’s one of the most promising ways to clean up the ever-thickening cloud of dangerous debris surrounding the Earth.

And just to be clear, space junk is a danger. There are about 25,000 human-made objects larger than your fist f

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