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Exploring The Universe: From Big Bang to Solar System

Delve into the fascinating journey of our universe, from the explosive origins of the Big Bang to the intricate composition of our solar system. Learn about galaxies, stars, planets, and celestial bodies through engaging animations and informative resources.

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Exploring The Universe: From Big Bang to Solar System

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  1. The Universe

  2. The Big Bang Theory • Scientists believe that our universe began with a big explosion of gas and dust in space. This explosion is called the Big Bang. • All of this matter and energy in space was concentrated at one point before the Big Bang. • They believe this explosion occurred about 15 billion years ago. • Since that time, the universe has been expanding (getting bigger and more spread out).

  3. animation of the formation of the universe: • http://resources.schoolscience.co.uk/PPARC/bang/bang.htm

  4. our solar system • Our solar system consists of the sun, planets, dwarf planets (or plutoids), moons, an asteroid belt, comets, meteors, and other objects. • The sun is the center of our solar system; the planets, over 61 moons, the asteroids, comets, meteoroids and other rocks and gas all orbit the Sun.

  5. This is the compostion of our solar system:Sun: 99.85% Planets: 0.135% Comets: 0.01% ? Satellites: 0.00005% Minor Planets: 0.0000002% ? Meteoroids: 0.0000001% ? Interplanetary Medium: 0.0000001% ?

  6. animation of our solar system. • http://janus.astro.umd.edu/javadir/orbits/ssv.html

  7. galaxy • Definition: A cluster of hundreds of billions of stars. • Our galaxy is the Milky Way. • The Milky Way is a spiral galaxy. • Our solar system is on a spiral arm of the Milky Way.

  8. The Milky Way Galaxy

  9. Types of Galaxies: Elliptical galaxies Huge; contain stars, gas, and dust Held together by gravity Round-to-oval shape Mainly old stars are present

  10. Types of Galaxies: Spiral galaxies • Huge; contain stars, gas, and dust • Held together by gravity • Pinwheel shape • Young and old stars are present

  11. Types of Galaxies: Irregular galaxies • No regular shape • May show signs of a disk and/or a bulge; • halo is present • Usually rich in gas and dust • Young and old stars are present

  12. formation of our solar system • http://www.metacafe.com/watch/1111454/formation_of_the_solar_system_great_animation/

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