Timeline of the Universe · event

Grand Unification

10⁻⁴³ – 10⁻³⁶ s · Very Early Universe

Temperature (K)
1e+28
When
10⁻⁴³ – 10⁻³⁶ s
Redshift
—
Era
Very Early Universe
Seconds After Big Bang
1e-36

What Happened

Gravity has separated; the strong, weak and electromagnetic forces are still a single interaction. The symmetry breaks at the end of this interval, and the energy released may be what drives what happens next.

Researchers

Equations

Theories

Referenced by

equation
researcher
theory

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From the Cosmic Timeline database in Notion, last edited 2026-08-16. This page is the row, rendered by the build; nothing on it is written by hand.