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

Or use the time slider to explore at your own pace.

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