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The National Aeronautics and Space Administration has communicated with its Psyche spacecraft — located more than 226 million kilometres away — using a space laser. The Psyche mission is a journey to a unique metal-rich asteroid orbiting the Sun between Mars and Jupiter. Laser communications sent a copy of engineering data back to Earth from the spacecraft. The distance travelled is one and a half times the distance between Earth and the Sun.
“This represents a significant milestone for the project by showing how optical communications can interface with a spacecraft’s radio frequency comms system.” NASA’s recent demonstrations show it can transmit data through space at a rate comparable to broadband internet download speeds. In a 2023 experiment, NASA beamed a 15-second video to Earth from 31 million kilometres away.
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