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Scientists say they can get spacecraft to Mars in 3 days using lasers -- but there's one big problem

Recently, a team of scientists led by Philip Lubin announced with NASA that they are working on developing technology that would enable trips to Mars in just three days — using lasers. But while this could monumentally change space exploration, many are sceptical of how close we are to making the technology a feasible reality.

Produced by Jenner Deal. Original Reporting by Jessica Orwig.

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