1. SPACE TRAVEL

2. NOT A CONSTANT SPEED Lift off Need most speed Atmosphere Creates friction ;drag Gravity of objects Sling-shot

3. PROBLEMS Space radiation (sun, Jupiter) Long time in microgravity Human body needs gravity Lose bone density, muscle Micrometeorites Huge distances! Money

4. MOON TRAVEL Luna 1959 (unmanned)= 36 hour Apollo 1970’s = 3 days New Horizon 2006 = 8 hours Space Shuttle: 13 hours (last shuttle 2011)

5. 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

6. 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

7. NUCLEAR PROPOLSION Fastest type of spacecraft so far 85 years to get to Proxima Centauri Uses nuclear fuel = BANNED!

8. SPACESHIP 1 FIRST NON-GOVERNMENT SPACECRAFT 2004 15 km- 5 minutes

9. 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!