A simulation of the binary system formed by the pulsar PSR J0740+6620 (right) and an ultra-cold white dwarf [image: Michele Diodati]

A Record-Breaking Neutron Star

With 2.14 solar masses, PSR J0740+6620 is the most massive neutron star so far discovered. Its mass was determined thanks to a relativistic phenomenon called Shapiro delay. This discovery has profound implications for the equations of state that describe the internal…

Michele Diodati
Amazing Science
Published in
7 min readApr 6, 2020

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Michele Diodati
Amazing Science

Science writer with a lifelong passion for astronomy and comparisons between different scales of magnitude.