Made Of

Everything is made of something.
← What it takes
What it leads to →
Made from
4steps from the big bang
5things can go into it

neutron star merger

FundamentalCosmic

When two dead star cores collide, they forge the heaviest elements. Much of Earth's gold may have been made this way, or in rare collapsing giant stars.

First appearedDate not yet known
Goes into

When two dead star cores collide, they forge the heaviest elements. Much of Earth's gold may have been made this way, or in rare collapsing giant stars.

From the big bang to neutron star merger

The most direct chain from the start of the universe, following what things are made from and, for living things, what they evolved from. Each step shows when it first appeared.

big bang13.8 bn yrs ago
Hhydrogen13.8 bn yrs ago
star13.6 bn yrs ago
supernova13.6 bn yrs ago
neutron star mergerdate unknown