The Big Bang Theory and Solar Nebula The Universe
Where do we live?
Where are we located?
<ul><li>We live on the Earth </li></ul><ul><li>The Earth is a planet in the Solar System, orbiting our star which we call ...
The Solar System
Question?? What is a STAR?
 
What is a Star? <ul><li>A star is a big ball of burning gas </li></ul><ul><li>When we look out into the night sky, many of...
What is this? What is it made of?
 
MANY STARS
MANY STARS SOME SUN-LIKE
Galaxies <ul><li>Stars tend to group together to form galaxies </li></ul><ul><li>Galaxies contain hundreds of thousands of...
You are here!
Our Galaxy from the   Earth
Galaxies as seen with the Hubble Space Telescope
The Big Bang Theory <ul><li>How did everything start? </li></ul><ul><li>How long ago did this happen? </li></ul>
In the Beginning
All the mass and energy of the universe
EVERYTHING!
EVERYTHING! ENERGY INCREASING, BECOMING LIKE A BOMB……. STARTS EXPANDING…..
BOOM!
The Big Bang <ul><li>Not really an ‘explosion’  </li></ul><ul><li>Universe expanded rapidly as a whole </li></ul><ul><li>(...
 
COSMIC ‘SOUP’
PROTON NEUTRON ELECTRON COSMIC ‘SOUP’
<ul><li>Universe much cooler, atoms start to form…..  </li></ul><ul><li>Hydrogen, Helium, normal ‘stuff’ </li></ul>300,000...
 
Universe is now a GAS
Universe is now a GAS HYDROGEN HELIUM
 
GRAVITY!
Gravitational Collapse <ul><li>We started with a uniform gas </li></ul><ul><li>Small regions became more dense </li></ul><...
Gravitational Collapse <ul><li>Regions with more particles (higher density) become  gas clouds </li></ul><ul><li>Gas cloud...
If we could view the Universe from outside, if would look like this:
But we are inside one of these galaxies, so all we see are the  nearby stars.  We can see other galaxies if we use a teles...
The Gemini Telescope
 
 
Future? <ul><li>The Universe is still expanding </li></ul><ul><li>All galaxies are moving apart </li></ul><ul><li>The ‘exp...
What have we learned? <ul><li>The Universe started with a  BIG BANG </li></ul><ul><li>Gradually the particles were drawn t...
THE END
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The Universe

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The Universe

  1. 1. The Big Bang Theory and Solar Nebula The Universe
  2. 2. Where do we live?
  3. 3. Where are we located?
  4. 4. <ul><li>We live on the Earth </li></ul><ul><li>The Earth is a planet in the Solar System, orbiting our star which we call the Sun </li></ul><ul><li>The Sun is part of a galaxy </li></ul><ul><li>When we look out into the sky at night, all of the stars we see are in our galaxy </li></ul><ul><li>But our galaxy is just one of many….. </li></ul>
  5. 5. The Solar System
  6. 6. Question?? What is a STAR?
  7. 8. What is a Star? <ul><li>A star is a big ball of burning gas </li></ul><ul><li>When we look out into the night sky, many of the stars we see are very similar to our own sun </li></ul><ul><li>In fact some of these stars also have planets, just like our own Solar System </li></ul>
  8. 9. What is this? What is it made of?
  9. 11. MANY STARS
  10. 12. MANY STARS SOME SUN-LIKE
  11. 13. Galaxies <ul><li>Stars tend to group together to form galaxies </li></ul><ul><li>Galaxies contain hundreds of thousands of stars </li></ul><ul><li>At the centre of most galaxies is a massive black hole! </li></ul><ul><li>Our sun is part of a galaxy </li></ul>
  12. 14. You are here!
  13. 15. Our Galaxy from the Earth
  14. 16. Galaxies as seen with the Hubble Space Telescope
  15. 17. The Big Bang Theory <ul><li>How did everything start? </li></ul><ul><li>How long ago did this happen? </li></ul>
  16. 18. In the Beginning
  17. 19. All the mass and energy of the universe
  18. 20. EVERYTHING!
  19. 21. EVERYTHING! ENERGY INCREASING, BECOMING LIKE A BOMB……. STARTS EXPANDING…..
  20. 22. BOOM!
  21. 23. The Big Bang <ul><li>Not really an ‘explosion’ </li></ul><ul><li>Universe expanded rapidly as a whole </li></ul><ul><li>(Universe is still expanding today as a result of the Big Bang) </li></ul><ul><li>Matter was created in the form of tiny particles (protons, neutrons, electrons) </li></ul><ul><li>Too hot for normal ‘stuff’ to form (eg atoms, molecules) </li></ul>
  22. 25. COSMIC ‘SOUP’
  23. 26. PROTON NEUTRON ELECTRON COSMIC ‘SOUP’
  24. 27. <ul><li>Universe much cooler, atoms start to form….. </li></ul><ul><li>Hydrogen, Helium, normal ‘stuff’ </li></ul>300,000 Years Later…..
  25. 29. Universe is now a GAS
  26. 30. Universe is now a GAS HYDROGEN HELIUM
  27. 32. GRAVITY!
  28. 33. Gravitational Collapse <ul><li>We started with a uniform gas </li></ul><ul><li>Small regions became more dense </li></ul><ul><li>The denser regions had larger gravity and started to pull other particles towards them </li></ul><ul><li>The gaseous Universe began to look ‘clumpy’ </li></ul>
  29. 34. Gravitational Collapse <ul><li>Regions with more particles (higher density) become gas clouds </li></ul><ul><li>Gas clouds become stars and galaxies </li></ul><ul><li>Galaxies congregate together in filaments , groups and clusters </li></ul>
  30. 35. If we could view the Universe from outside, if would look like this:
  31. 36. But we are inside one of these galaxies, so all we see are the nearby stars. We can see other galaxies if we use a telescope
  32. 37. The Gemini Telescope
  33. 40. Future? <ul><li>The Universe is still expanding </li></ul><ul><li>All galaxies are moving apart </li></ul><ul><li>The ‘explosion’ of the big bang is still happening! </li></ul><ul><li>It may contine expanding forever </li></ul><ul><li>Or is may stop expanding, and fall inwards in a big CRUNCH! </li></ul>
  34. 41. What have we learned? <ul><li>The Universe started with a BIG BANG </li></ul><ul><li>Gradually the particles were drawn together under GRAVITY to form STARS and GALAXIES </li></ul><ul><li>Many stars have planets around them </li></ul><ul><li>The fate of the Universe is uncertain… </li></ul>
  35. 42. THE END

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