4steps from the big bang
5things can go into it
Fe
iron
FundamentalElement
The end point of fusion in stars. Making anything heavier than iron costs a star energy instead of releasing it.
First appeared13.6 billion years ago
Made Of
Everything is made of something.← What it takes
What it leads to →
Made from
The end point of fusion in stars. Making anything heavier than iron costs a star energy instead of releasing it.
From the big bang to iron
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
Feiron13.6 bn yrs ago