“Cosmic Lighthouses” Could Help Astronauts Navigate Space

“Cosmic Lighthouses” Could Help Astronauts Navigate Space
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For centuries, sailors used the night sky to navigate the seas. But once humanity transitions to traveling and living in space, the equation changes. It’s why scientists on board the International Space Station are looking for a GPS alternative for deep space travel. Rather than relying on satellite constellations, scientists are proposing we use neutron stars — or the dead remains of stars that exploded in a supernova — as “cosmic lighthouses,” according to a new NASA statement . More specifically, the scientists are eying pulsars, rapidly spinning neutron stars, that emit x-rays in tight spinning beams, just like […]

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