LESSON-1-8.pdf

ORIGIN OF LESSON 1: THE UNIVERSE LESSON OBJECTIVES Describe the structure and composition of the Universe State the different hypothesis explaining the Origin of the Universe. Appreciate the Origin of the Universe  Origin of the Universe Hypotheses and Theory...

ORIGIN OF LESSON 1: THE UNIVERSE LESSON OBJECTIVES Describe the structure and composition of the Universe State the different hypothesis explaining the Origin of the Universe. Appreciate the Origin of the Universe  Origin of the Universe Hypotheses and Theory - Big Bang Theory - Steady State Theory - Oscillating Universe Theory  BIG BANG THEORY  STEADY STATE THEORY States that the universe always looks the same in any time or space but continuously expands while simultaneously creating matter, maintaining the density of the universe; hence, the name Steady State.  Oscillating Universe Theory States that the universe is expanding and will contract once all the energy after the Big Bang is used up SOLAR SYSTEM DIVISION IN SOLAR SYSTEM TERRESTRIAL PLANETS JOVIAN PLANETS  Origin of the Solar System Hypotheses and Theory  Nebular Hypothesis explains that the solar system originated from a nebula – a gas cloud made up of hydrogen particles. Before the nebula is stable, it is believed that a nearby supernova resulted in the disruption of a nebula  Encounter Hypothesis explains that the solar system formed as a result of a near collision between a passing star and the Sun.  Protoplanet Hypothesis is a modified version of the nebular hypothesis. Just like the nebular theory, protoplanetary theorists Carl von Weizsäcker and Gerard Kuiper believed that the solar system started from a nebula.  LAYERS OF ATMOSPHERE      –  –         –  · ° °   · · · · – ° ·  °