Space Cities - Earth’s Lifeboats
The Earth has no lifeboats - if our planet hits an iceberg, we go down with the ship :(
There are numerous catastrophic events
that can virtually annihilate humankind, such as comet or asteroid impact, supervolcano, rising sea levels from global warming,
nuclear war, global pandemic, etc.
And human population has ramped up to near vertical expansion. Everywhere you look, babies, babies and more babies.
China and India still haven't figured out birth control yet :| Our planet will soon reach a human saturation limit
and millions are already dying because of it.
If we wish to hang around for a while, there should be a global effort toward building off-planet, habitable structures.
More than a space station, although it’s a good start. This is not a new idea. It has been fantasized and illustrated
by sci-fi writers and film makers for decades.
But now we’ve reached a point in our technological skills to make this happen. It’s no longer fantasy.
Our most formidable struggles will be financial and political, not electro-mechanical.
I share the ultimate goals of Elon Musk
except I believe we should be orbital and space-mobile
rather than fixed on Mars. Our new home should be able to "Get out of the way" if need be, and even travel in it!
At the least, SpaceX rockets could deliver the necessary cargo and crew to orbiting city developments. His efforts
are a fantastic start to expanding off our planet and to perhaps saving the species.
So now that we’re able to deliver cargo to orbit, the next question is “How are we going to build it?”
Well, “we” aren’t. We will certainly design and engineer it, but we won’t be floating out in space trying to do
civil construction. Robotics to the rescue. As proven by companies like ABB, Fanuc and Kuka, we are able to build
robotic arms capable of infinite tasks and incredible precision. It is my opinion that a swarm of “Builder Bots”,
riding on rail systems, should easily be capable of massive construction. I see a Builder Bot as being both
autonomous and an ROV rail car with four robot arms attached - two large arms for heavy maneuvering and two smaller
arms for assembly. We already have robot arms on tracks.
The Builder Bot should have “Tool Totes”, compartments with interchangeable tools. I also see “Cargo Wagon” side-cars
that can attach and detach to both sides of the Builder Bot car, and be transferable from one Builder Bot to another.
These ideas are very similar to many others who have contemplated building space structures, such as
The remainder of this page is a growing, evolving outline of requirements, steps and ideas toward the goal
of extra-Earth human habitation. Basically just brain storming.
Starting from scratch requires first building an infrastructure and the first thing our Builder Bots will need is power.
- An Orbiting, Mobile Space City
- Human Requirements
- Pressurized atmosphere (air)
- Enclosed, radiation shielded environment
- Gravity, approx 9.8 m/s/s
Until we invent artificial gravity, it makes sense to occupy the inner shell of a large rotating cylinder
where the centrifugal force simulates gravity.
- Structure Requirements
- Infrastructure Requirements
... more coming soon ...