Paul Sutter is an astrophysicist at The Ohio State University and the chief scientist at COSI science center. Sutter is also host of Ask a Spaceman and Space Radio, and leads AstroTours around the ...

After guiding us across the universe, astrophysicist and Space.com columnist Paul Sutter closes his basic astronomy series this week by looking at the arguments for and against the existence of quark ...

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 ...

Quark star crashes: artist’s impression of a blue supergiant star, which could collapse to form a quark-gluon plasma. (Courtesy: Sephirohq/CC BY 3.0) The conversion of neutrons and other baryons to a ...

Neutron stars are so named because in the simplest of models they are made of neutrons. They form when the core of a large star collapses, and the weight of gravity causes atoms to collapse. Electrons ...

Dark star crashes: the computer simulation of two merging neutron stars (left) blended with an image of heavy-ion collisions at CERN to highlight the connection of astrophysics with nuclear physics.