Sailing among the stars: how photons could revolutionize space flight
A few days from now, a SpaceX Falcon Heavy rocket will lift off from Florida, carrying a satellite the size of a loaf of bread with nothing to power it but a huge polyester "solar sail."
from Phys.org - latest science and technology news stories http://bit.ly/2L85wQa
from Phys.org - latest science and technology news stories http://bit.ly/2L85wQa
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