'space Gps' Lets Nasa Navigate Using x-rays From Pulsars 

6 months ago
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Sextant apparatus uses X-rays from pulsars to work out an object's position
It takes measurements from the spinning stars taken by the Nicer tool on the ISS
Sextant can locate an object moving at thousands of miles per hour in space
The breakthrough could lead to robots being sent to explore deep space

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