NASA engineer David Burns produced an engine of speed of light concept that, he says. It could theoretically accelerate to 99 percent of the speed of light – all without using propellant. Dr Burns, from Nasa’s...
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NASA engineer David Burns produced an engine of speed of light concept that, he says. It could theoretically accelerate to 99 percent of the speed of light – all without using propellant. Dr Burns, from Nasa’s...