universe

BIG BANG

The universe begins as an extremely hot, dense point. Space and time start expanding.

COSMIC INFLATION

The universe expands rapidly in a fraction of a second.

FIRST PARTICLES

Protons and neutrons form as the universe cools.

FIRST ATOMIC NUCLEI

Hydrogen and helium nuclei form through nuclear fusion.

COSMIC MICROWAVE BACKGROUND

Atoms form and light moves freely, the radiation is still detectable today.

FIRST STARS

Gravity pulls gas together to form the first stars.

FIRST GALAXIES

Stars begin grouping together into early galaxies.

GALAXIES EVOLVE

Galaxies grow larger through mergers and star formation.

SOLAR SYSTEM FORMS

The Sun and planets form from a cloud of gas and dust.

PRESENT DAY

The universe contains billions of galaxies and continues expanding.