99

Immunity to Disease Your lunar citizens live in a perfect environment! They have all the food they need, they have recycling that, frankly, removes most bacteria from their lives. Atmosphere is constantly recycled, which includes scrubbing. Water, too, is recycled, scrubbed and clean for use. In fact, the colony has been disease-free for, well... ...


77

The simplest way is probably to leave them with a shortage of unobtainium. A substance named for obvious reasons, that happens to be required for the production of FTL drives. Perhaps the limited quantity they had in their existing drive was destroyed (causing the accident) or dispersed in the accident. Either way, they're now limited to space habitats and ...


63

Their ship and her payload were designed as a colony expedition. They had not just asteroid mining craft, and seeds for hydroponics, and modular habitat sections, they also had the blueprints and machine tools to replicate them. And they had the engineers to read the blueprints and use the tools. For the stardrive, they had just the operators' maintenance ...


59

What you suggest is possible, but the solution is a major problem, for larger reasons. We have sent probes to crash into Jupiter. It is physically possible to send waste into a gas giant. Just as it is theoretically possible to send waste now into the Sun. However, the primary issues encountered commonly with waste is economic and logistical. Waste is not ...


56

As the water "falls" from shower head height towards the drain at the floor, it would be moving at a fixed velocity and be rotating slower than it should at the increased radius of the bottom of the shower, so it would tend to lag the rotation and bend backwards to the direction of spin. The relative strength of this effect would be dependant on the overall ...


49

Materials exposed to vacuum for extended periods often become brittle and/or literally lose mass over time. Outgassing, cold-welding, decomposition of alloys back to their constituent materials, coronal arcing due to ionization from exposure to ionizing radiation, acceleration of outgassing and decomposition again due to ionizing radiation exposure are all ...


44

You will likely have an easier time if you pick a Slavic language that uses a Roman alphabet. Like Czech or Slovak (which are very similar to each other). Then you don't have to deal with the unknown alphabet and words that are more removed from Latin/etc. Take Slovakia. It's got some pretty straight-forward place name conventions. I do a lot of genealogy ...


44

As every project manager knows, scope creep is the root of all evil. At the beginning, it was just about sending one ship to another planet. Easy, just a matter of time. Then someone said something about food diversity, citrus fruits and, for whatever reason, pineapples. So a team was split up to figure out how to grow pineapples on a space ship and in a ...


41

A non-obvious loss area would be Genetic diversity. After several thousand years of carefully controlled plant growth, and several thousand years of inbreeding, unless care was taken to maintain genetic diversity in plants and animals (including humans), a single mutated bacteria could take out a key component of the self sustaining ecosystem.


35

Take a look at swimming costumes over time. The thing about microgravity is that it's relative pull by comparison to the atmosphere would be similar to that which we currently experience diving - that is to say that water is quite dense, and we float in it because the pull of gravity affects the water more than us because its denser. We compensate for that ...


32

The ship consists of stages, and only the final stage arrived. This is a very realistic explanation. That's how we build rockets, because it's efficient and much cheaper. Might not fit your plot, though. Given that they are only left with the smallest of the stages they could only guess how to build the most complex stages. The ship carried just enough ...


31

A massive solar flare was emitted by the sun and engulfed both earth and the moon but mars was no-where near that part of the solar system. The flare was extremely powerful, far more so than any on record, and basically destroyed all electronic devices. Those people who survived the immediate aftermath as everything moving crashed and all life support, ...


30

Its less about occupying a space and more about setting a boundary in all senses of the word. "If you cross this boundary then your ships would get a tactical advantage in scouting out potential weaknesses and might be in a better position to attack some of my colonies. So if you cross it we will assume that action is happening and retaliate accordingly". ...


29

This is similar in effect to Separatrix's unobtainium answer, but a slightly different spin. AI created all of the FTLs in existence. No flesh and blood brain can fully comprehend the details of their inner workings enough to recreate one. This doesn't mean they don't understand the broad strokes of how it works, just that they can't replicate it. Then the ...


28

Volatiles like hydrogen, carbon, nitrogen, and noble gases. These elements are necessary for life and useful for industrial processes, while being difficult to replenish. Hydrogen, carbon, and even nitrogen can be used as rocket propellant which will consume these elements without any chance of recycling. They are also liable to loss through slow leakage. It ...


27

Counter-intuitively, the way I would go about that would be to construct your own simplistic conlang with Slavic flavour. First, Slavic isn't a single language, there are three major subgroups inside of it, and multiple languages, with phonetical and grammatical nuances of their own. Translating stuff to one language through Google Translate will give you ...


24

The will to live Survival on a lunar colony is a lot harder than here on planet earth. You are tired at the end-of-day, and the time to have and raise kids is just a little more than you can take. Population decreases until there is just not enough left for the colony to be viable/


24

I believe you have two options here 1) make up something generally Slavic sounding 2) get a native speaker to help you out. As a Czech I see way to much weirdness already in the suggestions here on this page only (e.g. Novyruska or Novyruskia absolutely cannot work, Russia is feminine and novy is masculine, you need nová/novaya/depends on specific language,...


23

One problem could be that humanity in fact becomes too committed to the space program and neglects economic sustainability. By concentrating too much on the colonization project, other branches of the economy get neglected and stagnate, which then causes a ripple effect eroding the economic foundation which makes the space program possible in the first place....


21

The origins of this mystery dates back to early 2000's. The small SETI office in the Hat Creek Observatory was filled with the noise of computers beeping and buzzing. They had just detected an alien transmission and were repeatedly receiving the same transmission for about an hour now. Language Experts and scientists were flown in early in the morning at 2:...


20

Because we're human & it's there We started off in the middle of the desert, yet we kept looking at the horizon and wondering what's there so some of us risked their life & limbs (which at that point really was all they had) & walked there to find out. At some point we reached the ocean, and we got stuck for a while, that is until some clever ...


20

Could the characters go to the space and colonize Mars or stay in a sustainable orbit around earth? NO, for several reasons: As of today, we are not yet capable of even sending a human to Mars, let alone keeping him/her alive there Non-military rockets are fueled with highly unstable chemicals. One doesn't simply fill their tanks and leave them parked for ...


18

The problem is energy Since you're on the moon orbiting the gas giant, both you and the trash are moving at the moon's orbital speed around that gas giant. And it takes a lot of energy/fuel to slow the trash down and get it out of the planet's orbit, allowing it to fall into the atmosphere. As long as you have cheap and plentiful energy resources and ...


18

You might think of it as the outer-space equivalent of the Treaties of Tordesillas and Zaragoza. The situation is most space opera is similar to the situation of Earth in 15th and early 16th centuries, at least from the point of view of the European nations: you generally know where the big stuff is, but there's still a lot that's unknown. Spain and ...


17

It was the Singularity. The density of computer networks and AIs on Earth reached a critical point, and humanity and its machines abruptly ascended into something unknowable. See Vernor Vinge’s novel Marooned In Realtime for a version of this idea where the separation is in time rather than in space.


16

Look for "The Locusts" by Larry Niven and Steven Barnes. First published in Analog in 1979. http://www.isfdb.org/cgi-bin/title.cgi?49922 Colonists land on foreign planet (in story, around a new star). They settle in and eventually start having kids. But the kids are a bit, well, stupid. And the second generation isn’t really sentient. The grandparents are ...


16

An Aluminium-Oxygen drive burns Aluminium and Oxygen (as the name would suggest), achieving a mediocre specific impulse (the primary measure of fuel efficiency for rockets) of about 285 seconds. Normally this would be of no interest for rocket fuel since current Hydrogen-Oxygen drives such as those used for the Space Shuttle's main engines can achieve ...


16

Protein: Crickets are not only the food fad of the moment but they are easy to raise, don't have the same ethical problems to kill as most meat animals, and are loaded with protein. My spouse thinks they taste terrific. They can be even roasted or ground into a flour for cooking. Oysters can be raised in underwater farms using waste (manure). This can ...


16

Light and thus Energy. This probably will happen as a result of natural phenomena involving Earth's magnetic cycles. The current dust storms on the moon - referred to as "Moon Dust Fountains" that occur as a result of electrostatic levitation of tiny particles of regolith (as a consequence of being stripped of electrons by the solar wind), are due to get ...


16

Computer chips. Computer chips are an interesting case. You can pack millions of high-end microchips into a single 1-ton storage container. Conceivably you could store enough to provide spares and replacements for thousands of years of maintenance in a fairly small space. Yet to actually produce more takes a huge industrial base. Chip fabs are vast ...


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