In Pictures: NASA’s coolest 'way-out' future projects

From space submarines to solar wind powered spacecraft, a look at the coolest space technologies

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A spacecraft blown by the solar winds, that’s what a NASA team would like to see with their concept called the Heliopause Electrostatic Rapid Transit System (HERTS). The HERTS is a revolutionary propellant-less propulsion concept that is ideal for deep space missions to the outer planets, Heliopause, and beyond. It is unique in that it uses momentum exchange from naturally occurring solar wind protons to propel a spacecraft within the heliosphere. The propulsion system consists of an array of electrically biased wires that extend outward 10 to 30 km from a rotating spacecraft.

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In Pictures: NASA’s coolest 'way-out' future projects

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