History of the Earth Chapter 1: Formation of the Earth From the Big Bang to Early Planets
Origins of… The Universe (13.7 Gyr) The Elements ( Gyr) The Solar System & the Earth (4.6 Gyr) The Moon ( Gyr)
Origin of the Universe (13.7 Gyr) The Big Bang Quantum Mechanical Statistical Vacuum Fluctuation?
History of the Universe
Hubble Deep Field
Evidence: Doppler Effect
Electromagnetic Radiation
Red Shift & Blue Shift
Red Shift of Spectrum
Galaxy Velocity More Red Shifted
Expansion of the Universe The galaxies are not moving through space, they are stationary is space. Space itself, between the galaxies is stretching and carrying the galaxies farther away from each other.
WMAP Wilkinson Microwave Anisotrophy Probe Microwave light emitted 380,000 yrs after the Big Bang
Stars Begin to Form about 300,000 years after the Big Bang At that time Universe is: 75% Hydrogen 25% Helium What about the rest of the elements?
Nebula
How a Star Works Radiation Pressure Gravity
Nucleosynthesis
Stellar Death: Collapse Radiation Pressure Gravity
Supernova: Crab Nebula
Supernova Remnants
Eagle Nebula
Origin of the Elements Hydrogen & Helium: Big Bang Helium to Iron: Stellar Fusion Multiples of 4 most common: Helium Carbon, Oxygen, Neon, Magnesium, Silicon, Sulfur, Iron Iron to Uranium: Supernova