SpaceX to Develop Reusable Launch System for Cheap Spaceflight, Mars Settlement
September 30, 2011 12:22 PM
Elon Musk with the Falcon 9
SpaceX founder Elon Musk hopes to send humans to Mars in 10 to 15 years
California-based space transport company
is looking to build a fully reusable orbital launch system that could make spaceflight more affordable, and eventually send people to Mars for permanent settlement.
Elon Musk, founder of SpaceX, has mapped out a way for the Falcon 9 rocket to deliver a Dragon spacecraft to orbit, then return to the launch site by touching down vertically under rocket power on landing gear. At the same time,
would make a supplies delivery to the International Space Station and return from orbit to make its own landing.
Achieving a reusable space transport has been difficult because of the engineering challenges associated with such a feat, but many have tried because a totally reusable rocket would cut the cost of spaceflight. Traditional rockets can only be used once, and a Falcon 9, for example, can cost about $50 million to $60 million.
Over the past year, Musk and his team at SpaceX managed to solve the complexities that have stumped many before and even made an animation of how the plan could work, which is a 90 percent accurate depiction. They now hope to make the reusable rocket system a reality.
"Now, we could fail -- I'm not saying we are certain of success here -- but we are to try to do it," said Musk. "And we have a design that on paper -- doing the calculations, doing the simulations -- it does work. Now, we need to make sure that those simulations and reality agree, because generally when they don't, reality wins."
According to Musk, a Falcon 9 can cost about $50 million to $60 million, but fuel and oxygen for one launch only costs $200,000. So if the rocket can be reused, he said, around 1,000 times, the capital cost of the rocket per launch would only be approximately $50,000.
"If it does work, it'll be pretty huge," said Musk.
As far as long-term goals go, Musk sees the reusable rockets carrying settlers to Mars in an effort to "make humanity a multiplanetary species" in the event that something disasterous should happen on Earth.
Musk went on to suggest that spending a quarter of a percent of an annual gross domestic product of $14 trillion (which would be $35 billion annually) on space development and a focus on Mars-related missions. This sort of budget could drop the cost of Mars travel to $500,000 per person, he said.
According to Musk,
sending humans to Mars
could take as much as 10 to 15 years, and estimates that if the human population is at 8 billion at that time, that a minimum of 8,000 people could afford to travel to Mars.
Before launching humans into space, SpaceX capsules must first meet the safety standards that the
now-retired NASA Space Shuttle program
had to meet. This includes a launch escape system, which SpaceX capsules currently do not have, but reportedly will in about two or three years.
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