Outward Bound: Beyond Low Earth Orbit

Once a combination launch system that includes a Skyhook has been built and orbiting hotels and factories are in the process of being built, where do we go next?  Low Earth orbit is only two hundred to three hundred miles up, and some astronauts have described low Earth orbit spaceflight as “skimming the cloud tops.”  By comparison, the Moon is 240,000 miles away and Mars is measured in many millions of miles.  Based on this, low Earth orbit is the equivalent of standing on our doorstep.

So again, where do we go next in our outward bound journey?

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Some people want to return to the Moon to mine it for water, oxygen, minerals, helium 3, and as practice before going to Mars.

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Some people want to explore the near-Earth asteroids with the idea of either mining them or moving them closer to the Earth where they could be processed.

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Others want to build an outpost space station near the Moon that would serve as a jumping off point for trips to the Moon, the near-Earth asteroids, and eventually to Mars.

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Some people want to go directly to Mars,

and some want to build space colonies and satellite solar power stations.

The one thing that all of these ideas have in common is the need to go from low Earth orbit velocity to escape velocity.  It takes a lot of change in velocity to do that.  Change in velocity that requires an upper stage and a lot of propellant.  Building an upper stage, filling it with propellant and lifting it into low Earth orbit costs a lot of money even when using a combination launch system.  Even if you make the upper stage reusable you would still have to launch another load of propellant to refill it and use it again, and the propellant would still have to be contained in tanks.  Bottom line, making the upper stage reusable doesn’t save you very much.  So how do we make going from low Earth orbit to escape velocity as affordable as going from the surface of the Earth to orbit on a combination launch system?

The answer to this is the Skyhook that was built for the combination launch system.

In the same way that the lower end of the Skyhook cable is moving at less than orbital velocity for its altitude, the upper end of the Skyhook cable is moving faster than orbital velocity for its altitude.  Once the Skyhook is long enough, the upper end of the skyhook cable will be moving at escape velocity.  That means that a spacecraft that releases from the upper end of the skyhook cable can be placed on a free return orbit to the Moon, on a path to an outpost space station at L-2, or on an escape trajectory to a near-Earth asteroid without the need to use an upper stage or any of its onboard propellant.  In other words, the upper end of the Skyhook will make low Earth orbit to escape velocity spaceflight affordable to everyone.

Once we have this we won’t need to choose between the Moon, Mars, or the asteroids as we will be able to afford all of them all on a commercial basis as profit making ventures.

 

Index of Articles

  1. Opening the High Frontier
  2. Skyhook, a Journey to Orbit and Beyond
  3. In the Beginning . . .
  4. Why do Rockets Cost so Much?
  5. Combination Launch Systems
  6. It’s All About Speed!
  7. Visions of the Future
  8. The Call of an Unlimited Future
  9. Combination Launch Systems, part 2
  10. Outward Bound: Beyond Low Earth Orbit
  11. and someday . . . Starships!
  12. Mars: how to get there
  13. Outpost Space Stations
  14. Dreams of Space
  15. The Moon or Mars?
  16. Skyhooks and Space Elevators
  17. Stratolaunch and the X-15
  18. Starship Congress
  19. Making Spaceflight Affordable
  20. How a Combination Launch System Works
  21. Starship Conference 2017
  22. New Worlds Conference 2017
  23. Opening the High Frontier
  24. Building a Spacefaring Civilization
  25. Space Exploration and the Future

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The Call of an Unlimited Future

In 2014, Erik Wernquist released a short film about his vision of our future called “Wanderers”.  It shows an incredible and wondrous future that sets no limits on what we can do and on what we might become.  Every bit of it is within our reach.  The only thing that is missing is the vision on how to make that first step, the step from the surface of the Earth to orbit and to escape velocity, affordable to everyone.

Think about that as you watch it.

All it will take to make this happen in the real world are the four components of a combination launch system.  Components that can be affordably built right now with existing materials and technology.  Four components that will give us an unlimited future.

In the closing lines of the film, it says,

“Maybe it’s a little early, maybe the time is not quite yet, but those are the worlds promising untold opportunity.  [They] beckon.  Silently they orbit the sun . . . . waiting.”

Why are we waiting?

 

Index of Articles

  1. Opening the High Frontier
  2. Skyhook, a Journey to Orbit and Beyond
  3. In the Beginning . . .
  4. Why do Rockets Cost so Much?
  5. Combination Launch Systems
  6. It’s All About Speed!
  7. Visions of the Future
  8. The Call of an Unlimited Future
  9. Combination Launch Systems, part 2
  10. Outward Bound: Beyond Low Earth Orbit
  11. and someday . . . Starships!
  12. Mars: how to get there
  13. Outpost Space Stations
  14. Dreams of Space
  15. The Moon or Mars?
  16. Skyhooks and Space Elevators
  17. Stratolaunch and the X-15
  18. Starship Congress
  19. Making Spaceflight Affordable
  20. How a Combination Launch System Works
  21. Starship Conference 2017
  22. New Worlds Conference 2017
  23. Opening the High Frontier
  24. Building a Spacefaring Civilization
  25. Space Exploration and the Future

Other websites

Videos

Visions of the Future

Where are we headed, as individuals, as a civilization?

What does the future hold in store for all of us?

Will we destroy ourselves in a nuclear war?

Will our civilization collapse due to overpopulation?

Will we muddle on with an ever growing divide between the haves and the have-nots?

Or will we take the next step and build a spacefaring civilization that sets no limits on what we might become?

We have been exploring space on a limited basis for over 50 years.  Limited because of the cost.  All the dreams and visions of large commercial passenger-carrying spaceships traveling between the planets, of cities on the Moon and Mars, of asteroid mining, and of space colonies scattered throughout the solar system, have remained dreams due to the high cost of spaceflight.  Isn’t it time we came up with a workable vision on how to make spaceflight affordable to everyone?  A vision that can be affordably built right now with existing technology?

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Building a space transportation system that is affordable to everyone will allow us to make all of these dreams into reality.

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Seriously, what other choice do we have?

The ideas and technologies that will make spaceflight affordable to everyone have existed for a long time.

The first component consists of choosing between air assisted launch or a ground assisted launch.  Two ideas that have been around for a long time.

The second component is making the launch vehicle reusable.

The third component is some form of a combination air-breathing and rocket motor propulsion system.

The fourth component is a non-rotating Skyhook with an ion propulsion system.

These four components, when used together, will reduce the cost of going to orbit from the current price of over $20 million per person to $20,000 per person.  And the best part of all this is that all four of these components can be affordably built with currently existing materials and technology, right now, today, no waiting.

 

Index of Articles

  1. Opening the High Frontier
  2. Skyhook, a Journey to Orbit and Beyond
  3. In the Beginning . . .
  4. Why do Rockets Cost so Much?
  5. Combination Launch Systems
  6. It’s All About Speed!
  7. Visions of the Future
  8. The Call of an Unlimited Future
  9. Combination Launch Systems, part 2
  10. Outward Bound: Beyond Low Earth Orbit
  11. and someday . . . Starships!
  12. Mars: how to get there
  13. Outpost Space Stations
  14. Dreams of Space
  15. The Moon or Mars?
  16. Skyhooks and Space Elevators
  17. Stratolaunch and the X-15
  18. Starship Congress
  19. Making Spaceflight Affordable
  20. How a Combination Launch System Works
  21. Starship Conference 2017
  22. New Worlds Conference 2017
  23. Opening the High Frontier
  24. Building a Spacefaring Civilization
  25. Space Exploration and the Future

Other websites

Videos