NASA Universe
@NASAUniverse
Your backstage pass to the universe and how NASA studies it. Exoplanets, black holes, dark energy, and more!
加入 March 2009
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Imagine finding the “bones” of dead stars! 🦴
At the end of a massive star’s life, it can leave behind its core as a neutron star … just a trace of what it once was. Like other fossils, these remains can teach us about the star’s past: #NationalFossilDay#
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