An atomic clock, ‘green’ propellant, and a solar sail are headed to space - The Verge

SpaceX is set to launch the third flight of its most powerful rocket, the Falcon Heavy. And this time, it’s carrying a host of new technologies into space, ranging from a new type of atomic clock to a thin sail that moves on sunlight. If they can survive the harsh environment of Earth’s orbit, then these new technologies could evolve into valuable tools for future space missions.

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