The most massive neutron stars probably have cores of quark matter
Illustration of a quark core in a neutron star. Credit: Jyrki Hokkanen, CSC – IT Center for Science Atoms are made of three things: protons, neutrons, and electrons. Electrons are a type of fundamental particle, but protons and neutrons are composite particles made of up and down quarks. Protons have 2 ups and 1 down, … Read more