Neutron stars may not be as squishy as some scientists thought

The most massive known neutron star has a surprisingly large width

illustration of a neutron star as a bright orb on a black background

Stellar corpses called neutron stars (one illustrated) contain incredibly dense matter which, according to a new measurement, is not easily compressed.

NASA’s Goddard Space Flight Center

Like a dried-up lemon from the back of the fridge, neutron stars are less squeezable than expected, physicists report.