Astronomers May Have Spotted the Most Massive Neutron Star Yet

September 25, 2019

It's a pulsar, named J0740+6620, and discrepancies in the timing of its pulses has allowed its mass to be calculated to 2.14 times that of the Sun, packed into a star just 30 kilometres (19 miles) across. To put that into perspective, the Sun has a diameter of 1.391 million km (~864,000 miles).