Guest Blog – Netherspace Authors Andrew Lane and Nigel Foster

Posted: May 23, 2017 in Guest blog, Sci-Fi
Tags: , , ,

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Future Space Travel

Let’s assume that we’re using a drive that doesn’t rely on controlled explosions. Make the control mechanisms as complex and high tech as you like, but you still only get forward momentum by making something go bang. So what does that leave us? Space sails? Nice idea – and originally a science fiction one (sigh) – but impractical. Space isn’t empty, a cloud of dust could wreak havoc and the sail would have to be so large it could take days to reach the damage. The sail enthusiasts have said repair-robots. When there’s a technical problem, someone always says robots. When there’s sexy but unsound idea – like a space sail – the human reaction is to add more and more tech to try and make it work. Humanity is programmed never to admit mistakes.
​NASA’s said to be working on two drives: “Alcubierre”, that distorts space; and the “EM”, that provides a better, stronger form of propulsion by using microwaves reflecting back and forth to (somehow) produce an asymmetric forward impulse. Which is good because the idea that humanity will be confined to the Solar System forever is just so wrong it hurts. Surely the universe couldn’t be so cruel? But this does open up a major problem: where do we build whatever craft will take us to the stars? Or even to the outer planets? Do we set up a vast manufacturing facility on the moon? Or conveniently discover anti-gravity (after figuring out what gravity actually is, as opposed to what it does) so we can build on Earth then float the craft into space?

​Actually we do neither. Nor do we set up a Navy Yard (sorry, Star Trek) in Earth orbit (or, as implausibly in J.J.Abrams’s reboot, somewhere in Kansas – how did they get the Enterprise up into space from there? And why?) Aside from the technical problems – did someone say ‘robots’? – mining and transporting the necessary raw materials requires machines and space craft so huge that building them would take years and consume most of our natural resources.

​The solution is hinted at in Netherspace. It’s not totally original, the late and wonderful Iain M. Banks began the idea, but we tarted it up some.

​Turn asteroids into spacecraft.
​Hollow them out, fix up living quarters, add a space drive – the Alcubierre space warp or NASA’s EMdrive – and away you go, protected from radiation and collisions by several hundred feet of rock. Because spacecraft do not need to be streamlined. They do not have to look pretty. All they have to do is take humans safely from point a to b (and we are reminded of the old cartoon in which a middle-aged businessman is talking to a car salesman, saying: “I want something that will get me from a. to c. without b. knowing.”) Okay, you may have to smooth them out to get a sensible centre of gravity. Spin them to increase that gravity. Still far, far easier than trying to build a cruise liner in space. And there are hundreds of thousands of them, all shapes and sizes, parked up in orbit and not that far from this very planet. Bit like a used car lot, really.

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