NASA @NASA
Scientists are redrawing the textbook image of pulsars – the whirling remains of exploded stars. Thanks to our @NASAUniverse NICER telescope on the @Space_Station, we now have the 1st-ever pulsar surface map, showing never-before-seen shapes and hot spots: https://t.co/h8Ef0tfkYf https://t.co/43fz3QJFoA — PolitiTweet.org