Member preview

Neutron star collisions may have created most of the gold in the universe

All that glitters is a neutron star collision.

By Mary Beth Griggs

Two city-sized orbs dance through their galaxy. Their dense mass, each equivalent to a star, spins the partners as they get closer and closer together, grazing the outer limits of their other half’s being. For 100…

This story is for Medium members.

Medium curates expert stories from leading publishers exclusively for members (with no ads!).

Already have an account? Sign in.

Join Medium to read this story.

Sign up with a free account to read this ad-free selection curated from Popular Science.
Already have an account? Sign in.