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Space Exploration Chapter 1

Space Exploration Chapter 1. The Final Frontier. “I CAN”. Explain how the Universe is arranged Describe what a star constellation is Explain why the motion of planets & stars occurs. Arrangement of the Universe. Universe: Everything!

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Space Exploration Chapter 1

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  1. Space ExplorationChapter 1 The Final Frontier

  2. “I CAN” • Explain how the Universe is arranged • Describe what a star constellation is • Explain why the motion of planets & stars occurs

  3. Arrangement of the Universe • Universe: Everything! • Galaxy: Billions of Stars & planets held together by their collective gravity • Milky Way: Collection of stars that our solar system is in • Solar System: A sun with planets orbiting it • Earth: Third planet from our sun

  4. Andromeda3 Million Light-Years Away

  5. Discovery videoLooking Into The Past • Saved in Real Player

  6. Discovery VideoSomething Comes From Nothing • Saved in Real Player

  7. Constellations ? • Night sky divided into areas called constellations • Group of stars forming a pattern-imagination required

  8. Deneb 1500light-years Albireo 400 light-years

  9. Remember, Motion Is Based On Your Frame of Reference

  10. Do stars rotate or is Earth? Stars move from east to west which means earth rotates west to east Polaris or the North Star

  11. http://www.astropix.com/ Very cool Pictures of space

  12. Sec. 1.2 Exploration From Earth “I CAN” Explain What Electromagnetic Radiation Is. Explain how Astronomers Gather Information About Space

  13. Electromagnetic Radiation • Travels in all directions through space • Most of our knowledge about space comes through EMR. • Visible light • Infrared • X-Rays • Radio waves • All forms of EMR

  14. What is a Spectrum? A range of something, in this case a range of energy

  15. Where does this energy come from? • Billions and Billions of Suns in Billions and Billions of Galaxies

  16. Man Made EMR

  17. Each color corrosponds to a different wavelength of light – our eyes only see this wavelength EMR Waves are created when a magnetic field reacts with an electrical field The more frequent or closer the wavelength, the greater the energy

  18. Telescopes & EMR • Visible light is only a small part of the spectrum • Refracting and Reflecting telescopes “see” this part of the EMS

  19. Radio Telescopes • Capture the “radio Wave” part of the EMS • Dish captures and focuses waves • Not affected by clouds or bad weather • Radio wave pass right through the atmosphere

  20. Space Telescopes • No atmosphere to look through • Sees in visible, infrared, & UV wavelengths Hubble

  21. Spitzer - Infrared

  22. Chandra – X-Rays

  23. Compton – Gamma Rays

  24. Into The Future! James Web Space Telescope Launch date 2014

  25. Sec. 1.3 Space Missions, Probes, & Landers • “I CAN” • Explain how we explore near earth space • Describe the various types of spacecraft we have used

  26. Men to Moon MissionsDriven by Rivalry With Soviet Union • 1960’s Mercury – Can humans go into space safely • John Glen

  27. Gemini Delelop techniques for advance space travel

  28. Apollo • Men On the Moon • 6 successful landings • Last mission 1972 • Rocks still being studied today

  29. 6 min

  30. Space Shuttle • First Reusable Spacecraft • More than 100 Launches • Cargo carrier • Last trip fall 2011

  31. International Space Station • Construction began in 1998 • Permanent space based laboratory • Laying ground work for Long term exploration

  32. Flyby Missions • May last for decades. Why? • Travel past several objects of interest • Complicated mathematical projections Voyager 1 & 2 Launched 1977

  33. Orbiters • Study planet over long periods of time • Create maps, monitor atmosphere, photograph Cassini

  34. Landers & Probes • Lands on surface • More detailed & specific data • Usually receives orders from Earth

  35. Combination Missions • Lander & orbiter work together • Ex: Cassini-Huygens • Sprit & Opportunity work with an orbiter Future missions will collect rock samples and return to Earth

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