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SPACE TRAVEL
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NOT A CONSTANT SPEED• Lift off
• Need most speed
• Atmosphere
• Creates friction ;drag
• Gravity of objects
• Sling-shot
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PROBLEMS• Space radiation (sun, Jupiter)
• Long time in microgravity
• Human body needs gravity
• Lose bone density, muscle
• Micrometeorites
• Huge distances!
• Money
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MOON TRAVEL• Luna 1959 (unmanned)= 36 hour
• Apollo 1970’s = 3 days
• New Horizon 2006 = 8 hours
• Space Shuttle: 13 hours
• (last shuttle 2011)
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REPLACEMENT FOR THE SHUTTLE• Orion
• Used to return to the moon and
Space station flights
• Obama cancelled program in
2011 budget
Plans for deep space missions
astronauts to visit an asteroid 2025
humans to Mars 2030
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GOOGLE LUNAR X PRIZE• Land on robot surface of moon and send back images and travel 500 meters
• Ends Dec. 31 2012
• Prize: $20 million
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NUCLEAR PROPOLSION• Fastest type of spacecraft so far
• 85 years to get to Proxima Centauri
• Uses nuclear fuel = BANNED!
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SPACESHIP 1FIRST NON-GOVERNMENT SPACECRAFT2004
• 15 km- 5 minutes
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VIRGIN GALACTIC• http://www.virgingalactic.com/multimedia/
• Virgin Galactic - let the journey begin (page 4)
• Make your reservation now! ($200,000) seats are going fast!