Neutron stars help forge some of the universe’s heaviest elements through extreme collisions and rapid neutron capture.

Learn what dark matter halos are, how they shape galaxies, and why they are central to modern cosmology.

Dark energy and dark matter shape the universe in different ways. Here’s how scientists tell them apart and why they are not the same.

Neutron stars are among the densest objects in the universe, with gravity and radiation that can overwhelm matter nearby.

Explore the leading candidates for dark matter, the evidence behind them, and how scientists are searching for the universe’s missing mass.

A grounded look at gravity, density, and tidal forces explains why standing on a neutron star is impossible.

Explore how cosmological simulations represent dark matter, from N-body methods to halo formation, baryonic physics, and the limits of prediction.

A simple explanation of dark energy, why it matters, and what scientists know so far about the force driving cosmic expansion.

Learn how neutron star collisions create gravitational waves, kilonovae, and heavy elements, and why these rare events matter to astronomy.