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Image credit: NASA

NASA is investigating X-Ray navigation in space

The system tracks radiation beamed out from pulsars.
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X-rays aren't just for investigating artworks or photographing black holes. NASA scientists just used them to demonstrate a new technique: Navigating the stars. In an experiment, equipment mounted on the International Space Station measured radiation beamed out from distant neutron stars in millisecond pulses -- and by timing their arrival, future spacecraft could find their location from deep space.

Source: NASA
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