NASA's seemingly impossible space engine looks more possible after its latest test

A group of NASA scientists have been working on a potentially revolutionary space engine that doesn't require rocket fuel and could make a trip to Mars in just 10 weeks. Or, they could be looking at a scientific error in violation of one of classical physics' core rules. They've been trying to figure out which it is for months, and now newly released test results are ruling out the prevailing hypothesis for why what they're looking at is an error, according to NASASpaceflight.
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