space travel. not a constant speed lift off need most speed atmosphere creates friction ;drag...

SPACE TRAVEL

NOT A CONSTANT SPEED• Lift off

• Need most speed

• Atmosphere

• Creates friction ;drag

• Gravity of objects

• Sling-shot

PROBLEMS• Space radiation (sun, Jupiter)

• Long time in microgravity

• Human body needs gravity

• Lose bone density, muscle

• Micrometeorites

• Huge distances!

• Money

MOON TRAVEL• Luna 1959 (unmanned)= 36 hour

• Apollo 1970’s = 3 days

• New Horizon 2006 = 8 hours

• Space Shuttle: 13 hours

• (last shuttle 2011)

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

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

NUCLEAR PROPOLSION• Fastest type of spacecraft so far

• 85 years to get to Proxima Centauri

• Uses nuclear fuel = BANNED!

SPACESHIP 1FIRST NON-GOVERNMENT SPACECRAFT2004

• 15 km- 5 minutes

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!