Sapiens Scientia

Big Bang Universe

A cosmic-history instrument for moving from the Planck epoch through recombination, galaxy formation, dark-energy acceleration, and the present observable universe.

13.8B

years

15

milestones

93B ly

observable span

The History of the Universe

13.8 billion years · logarithmic time

Composition of the Universe

Radiation-dominated era
Radiation 100%
Matter 0%
Dark energy 0%
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Timeline positions are displayed on a logarithmic deep-time axis with milestone spacing adjusted for readability.

Continue to the You Are Here journey