https://scitechdaily.com/hubble-space-telescope-directly-measures-the-mass-of-the-surviving-core-of-a-burned-out-sunlike-star/
Astronomers using the NASA/ESA Hubble Space Telescope have for the first time directly measured the mass of a single, isolated white dwarf star – the surviving core of a burned-out sunlike star. Researchers found that the white dwarf is 56 percent of the mass…
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