Like HowStuffWorks on Facebook!

5 Green Technologies for Interplanetary Space Travel

Lots More Information


How are drones changing agriculture?

How are drones changing agriculture?

Drones give farmers a fresh look at what's happening with their crops. Find out how drones are changing agriculture at HowStuffWorks.

Author's Note: 5 Green Technologies for Interplanetary Space Travel

Green technology and interplanetary space travel may seem like a strange combination, but it makes sense. Green technology is all about finding environmentally-friendly and efficient ways to achieve goals. Interplanetary travel by necessity requires efficiency and safety. It's fun to imagine crossing the galaxy in a spaceship kitted out with replicators and holodecks, but it's a safe bet that our early days of space travel will be more about making every effort count.

Related Articles

More Great Links


  • Brauenig, Robert. "Rocket Propellants." Rocket and Space Technology. 2008. (March 28, 2012)
  • Brumfiel, Geoffrey. "Experts Fuss Over Cost Of Nuclear Fusion Research." NPR. July 27, 2010. (March 27, 2012)
  • Carter, Lynn. "If Mars is only about 35-60 million miles away at close approach, why does it take 6-8 months to get there?" Curious About Astronomy. Cornell University. May 2003. (March 28, 2012)
  • Coffey, Jerry "How Long Does it Take to Get to Mars?" Universe Today. June 4, 2008. (March 28, 2012)
  • Environmental Protection Agency. "Hydrazine." January 2000. (March 27, 2012)
  • Heussner, Ki Mae. " One-Way Mars Mission: Would You Boldly Go?" ABC News. Jan. 13, 2011. (March 28, 2012)
  • Irvine, Dean. "Express lift to the stars." CNN. Dec. 4, 2006. (March 28, 2012)
  • Jones, Willie. "A Fusion Thruster for Space Travel." Ieee Spectrum. August 2011. (March 27, 2012)
  • LaMonica, Martin. "A reality check on nuclear fusion at MIT." CNET. June 29, 2011. (March 27, 2012)
  • NASA. "Green Flight Challenge." (March 29, 2012)
  • NASA. "Recycling Water is not Just for Earth Anymore." Nov. 17, 2008. (March 28, 2012)
  • NASA. "Space Shuttle and International Space Station Frequently Asked Questions." Feb. 24, 2008. (March 28, 2012)
  • NASA. "Water on the Space Station." Nov. 1, 2000. (March 28, 2012)
  • Park, Robert. "Voodoo Science." Oxford University Press: Oxford, U.K. 2000.
  • Saeta, Peter N. "What is the current scientific thinking on cold fusion? Is there any possible validity to this phenomenon?" Scientific American. Oct. 21, 1999. (March 28, 2012)
  • Smithsonian. "Apollo 11." National Air and Space Museum. (March 27, 2012)
  • Steitz, David and Newton, Kimberly. "NASA Seeks Proposals for Green Propellant Technology Demonstrations." Feb. 8, 2012. (March 27, 2012)
  • The Space Elevator Reference.
  • Wolfram Alpha. "What is the distance between Earth and Mars?" (March 28, 2012)
  • Wolfram Alpha. "What is the distance between Earth and Venus?" (March 28, 2012)

Wolfram Alpha. "What was the distance between Earth and the Moon in July, 1969?" (March 28, 2012)