Big bang timeline

BIG BANG TIMELINEFILL IN YOUR MISSING DATA

THE BIG BANG

• 0 to 10-43 seconds• Temperature- theorized to be infinite• Infinitely small, Infinitely Dense, Primeval

Fireball• Only 1 force exists- Supergravity

PLANCK TIME• 10-43 seconds• Temperature- 1032 Kelvin• Earliest known time that can be described by

Modern physics• 2 forces- Gravity, and Grand Unified Theory

GUT

END OF GUT

• 10-35 seconds• Temperature- 1027 Kelvin• 3 forces exist- Gravity, Strong Nuclear Force, Weak

Force• Quarks and Leptons form (along with their anti-

particles)

INFLATION

• 10-35 to 10-33 seconds• Temperature- 1027 Kelvin• Universe increases in size by a factor of 1030 to 1040

END OF UNIFIED FORCES• 10-12 seconds• Temperature- 1015 Kelvin• 4 forces found in nature- Strong, Weak,

Electromagnetic, and Gravity• Protons and Neutrons begin to form from

quarks

HEAVY PARTICLES

• 10-7 seconds• Temperature- 1014 Kelvin• Protons and Neutrons forming at full speed

LIGHT PARTICLES

• 10-4 seconds• Temperature- 1012 Kelvin• Electrons and their opposite particles

(positrons) form

NUCLEOSYNTHESIS

• 100 seconds• Temperature- 109 -107 Kelvin• Helium, Deuterium, and a few other elements

form

RECOMBINATION/DECOUPLING

• 380,000 years• Temperature- 3000 Kelvin•Matter and Radiation separate• Radiation domination ends and matter takes

over the Universe

GALAXY FORMATION

• 400-500 million years• Temperature- 10 Kelvin• Galaxies and other large structures form in the

Universe

NOW

•Approximately 13.7 billion years later• Temperature- 3 Kelvin•We sit here and take these notes today…