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{ On the Shoulders of Giants Organization of the universe.

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Presentation on theme: "{ On the Shoulders of Giants Organization of the universe."— Presentation transcript:

1 { On the Shoulders of Giants Organization of the universe

2 THE UNIVERSE: 3 theories 1. Open, expands forever 2. Closed, like a saddle 3. expanding and contracting

3 Galaxies: contain stars, huge clouds of gas and dust (nebulae) which revolve around a nucleus. Three types

4 Spiral galaxies: Very organized like our Milky Way galaxy

5 Elliptical Galaxies: Sphere or flattened disk, older stars, little gas and dust

6 Irregular galaxies: No specific shape

7 Stars: Made up of mostly Hydrogen and Helium. Formed by collapsing gas and dust

8 Nebulae: Birthplace of stars, globs of gas and dust. Full of radio, UV, IR, and X- Rays

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10 Star Clusters: Open (Pleiades) and Globular(Hercules)

11 Single star: Our sun. Single star systems are relatively uncommon.

12 Binary Star systems: Double Stars. Very common type of star system.

13 Novas: nuclear explosion of a white dwarf star. Causes increased brightness of a star.

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