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Light Sail on space already.

LazyHippo

By LazyHippo
in Science & Space

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LazyHippo

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A squared-shape craft takes Earth photos:

 

"When photons hit the square solar sail, which is made up of four triangular, aluminized Mylar sections, the pressure pushes the craft forward. With no propellant other than sunlight, LightSail 2 is now successfully orbiting Earth with the power of photons alone. While solar photons have no mass, they have momentum, and when they reflect off of the solar sail, some of their momentum is transferred to the craft. This creates a bit of thrust which (very gently and slightly) continuously pushes the craft forward. "

 

 

More info and videos here:

 

https://www.space.com/lightsail-2-solar-sail-deployment-photos.html

 

 

LightSail.png.99552b08741ac3c4485458ec8fc61300.png

 

 

 

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