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The physical environment describes the stuff the Universe is made from and how it behaves, excluding life and human activity.
In this list we show the main steps in the order you meet them if you click the Later buttons, plus some which are not on the main story line.
Macrocosmos
Field
Radiation
Particles
Electron
Positron
Interactions
Higgs Fields
False Vacuum
Inflation
Spontaneous Symmetry Breaking
Cosmos
Universe
Big Bang
Proton
Neutron
Nuclear Fusion
Alpha Particles
Radioactivity - Beta
Atom
Cosmic Background Radiation
Gas
Gravity
Clusters of Galaxies
Galaxies
Globular Star Cluster
Disc of Galaxy
Spiral Arms
Birth of a Star
Open Star Clusters
Milky Way Galaxy
Galaxy Problems
Stars
Binary Stars
How a Star Works
Red Giant
White Dwarf Star
Nova
Supernova
Neutron Star
Black Holes
Cosmic Dust
molecule
HONC Atoms
Shell Model - HONC
Shell Model of Hydrogen
Shell Model of Helium
Shell Model of Lithium
Shell Model - Second Shell
Shell Model of Carbon
Shell Model of Nitrogen
Shell Model of Oxygen
Water
Hydrogen Bond
Ice
Sun
Solar Disc
Planets
Solar System
Mercury
Venus
Mars
Asteroids
Jupiter
Saturn
Uranus
Neptune
Pluto
Comets
Solar System Model
Earth
Earth Origin
Earth Structure
Earth Magnetic Field
Radioactivity
Radioactivity - alpha
Radioactive Dating
Meteorite Era
Volcanoes
Early Atmosphere
Liquid Water
Rain
Weathering of Rock
Continental Drift
Sunlight
Greenhouse Effect
Weather
Climate
Ice Ages
Causes of Ice Ages
Continental Drift Movie
Earth 700 my ago
Earth 650 my ago
Earth 600 my ago
Earth 550 my ago
Earth 500 my ago
Earth 450 my ago
Earth 400 my ago
Earth 350 my ago
Earth 300 my ago
Earth 250 My ago--Pangaea
Earth 200 my ago
Earth 150 my ago
Earth 100 my ago
Meteorite
Earth 50 my ago
Earth Today
Climate Threats
Earth 10 my in future
Earth 20 my in future
Earth 30 my in future
Earth 40 my in future
Earth 50 my in future
Earth 60 my in future
Earth 70 my in future
Earth 80 my in future
Earth 90 my in future
Earth 100 my in future
Earth 110 my in future
Earth 120 my in future
Earth 130 my in future
Earth 140 my in future
Earth 150 my in future
Earth 160 my in future
Earth 170 my in future
Earth 180 my in future
Earth 190 my in future
Earth 200 my in future
Muon
Covalent Bond
van der Waals Bonds
Bond
Uranium
Ionic Bond
Boson
Core
Space-Time
Magnetic Field
Nucleus
Mantle
Photon
Strong Interaction
Magnitude
Shell Model of Carbon Dioxide
Dark Matter
Geological Time Scale
Pleiades
Nitrogen molecules
Light Year
Discovery of Molecules
Continental Drift - Evidence
Electric Charge
Hydrogen Atom
Nearest Star
Fermions
Neutrino
Weak Interaction
Pressure
Energy Density
Oxygen
Nitrogen
Carbon
Paleomagnetism
Pangaea
Alkali
Clay
Methane
Ammonia
Ion
Milky Way
Hydrogen Molecule
Helium Atom
Radioactivity - Gamma
Nuclear Fission
Moon
Carbon Dioxide
Laurasia
Quartz
Gondwanaland
Oxidation
Noble Gas
Heat
Energy
Andromeda Galaxy
Expansion of the Universe
Global Warming
Electricity
El Nino
Electric Field
Solar Wind
Proton Decay
Protons on Soccearth
Tau
Crust
Higgs Boson
Cosmic Rays
Matter
Atmosphere
Oxygen Molecules
Continental Drift Key
Quantum Fluctuation
Local Group of Galaxies
Atom Sizes
Atoms on Soccearth
Salt
Rock
Mineral
Electrons on Soccearth
Chemical Energy
Antimatter
Quark
Angstrom Unit
Continents
Mountains
Atomic Nucleus
Evaporation
Eclipse
Sand
Mass Extinctions
Oceans
For a complete alphabetical list of pages in this journal see the Index page.
Useful Links
Click for Further information about Physical Environment Other History of the Universe Pages News about History of the Universe
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