NASA Langley shows off solar sail spacecraft

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If you want to send a rocket into space to orbit the Earth, you need a lot of fuel to get that done quickly and safely. If you want to go to the Moon, Mars or beyond, you will need even more fuel. But what if you could get there just by using the solar wind?

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Solar sail & cathode Ray Tube proplusion - electron gun.

michaelanderson
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what a waste of money, why they not finding out about normal solar panels and electric hybrid propulsion?

gatecrasher
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What'd that cost the starving Taxpayer Slaves?

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