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Questions tagged [spaceships]

For questions involving implemented theory or technology for travelling through space. Consider also [space-travel]. See also the tag information (click "info") for more details on when this tag applies.

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29 votes
8 answers
5k views

How close to interstellar space travel could humans get in the near future?

I had in mind a sci-fi setting where humans have begun terraforming nearby planets without the benefit of faster-than-light travel. For example, Wikipedia lists a handful of terrestrial planets within ...
TenthJustice's user avatar
27 votes
2 answers
7k views

How large does a spacecraft need to be to be visible from the surface of the Earth at 400 km altitude?

If a spacecraft is in low earth orbit ~400 Kilometres above earth. How big does it need to be visible from earth with the human eye without telescopes, with enough of its details to clearly ...
Kami's user avatar
  • 447
21 votes
12 answers
9k views

If a space ship crashes on a planet, is it realistic that things from that space ship could be rescued afterwards?

The situation I'm considering is as follows: A space ship (a transport ship operated by two people) crashes onto a planet on which a swing-by was planned. The crew could escape using an escape ...
celtschk's user avatar
  • 31.4k
15 votes
1 answer
997 views

What would be required for a completely self sufficient 1 man habitat?

For the sake of this question, let's say that there would be a space mission that would send one man on a 40 year journey that will require him to be in a completely self sufficient habitat for the ...
user avatar
16 votes
3 answers
2k views

Would gravity be constant inside a Bernal sphere?

Suppose one constructed a Bernal sphere, similar in design to that described in this article and this article at the National Space Society. If the sphere was simply rotated on a single axis, would ...
Village's user avatar
  • 1,189
16 votes
1 answer
2k views

What would be the effects of traveling faster than light on a worldship?

Assuming a civilization has the technology and capability to build a worldship, a planet that doubles as a spacecraft, installs an FTL drive on it and has the energy to power it, what would the ...
mechalynx's user avatar
  • 5,843
15 votes
11 answers
1k views

How could trading posts be defended against pirates?

I got many little trading posts all over my worlds and orbiting around them. Everyone can trade in there, nice guys as well as scum of all kind. The trading posts are rich places. How could a system ...
Fulli's user avatar
  • 3,144
17 votes
6 answers
4k views

Optimum laser color for maximum destruction [closed]

In every science fiction story, the author seems to use a different color of laser for his ships, usually to distinguish sides in a fight. X-Wings are red. Tie fighters green. The Enterprise has ...
Vulcronos's user avatar
  • 4,386
11 votes
6 answers
709 views

Tactical influences of an entirely electricity-based arsenal on starships?

Assuming a world where starships don't use missiles and bullets in combat much. They only carry those as a final strike or for convenience. Their arsenal is almost entirely composed of electricity-...
mechalynx's user avatar
  • 5,843
29 votes
12 answers
7k views

Is there any way to truly hide a spaceship?

Space is two things: empty and (mostly) dark. This makes it really, really hard to hide in it, because to do anything in it, chances are, you'll be shining a big bright light through it. Even if you'...
neph's user avatar
  • 3,362
30 votes
7 answers
3k views

Feasibility of anti-matter as a fuel

Now, taking out the cost to produce/collect it, assume somehow we perfected a formula or find a natural source (because that is currently very prohibitive), how feasible would be to use antimatter as ...
bowlturner's user avatar
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15 votes
6 answers
2k views

Asteroid as a generation ship

I was wondering if it would make sense to hollow out an asteroid to use for a generation ship? Also, might it be a good idea to use hollow asteroids for any kind of long distance space ship? I'm ...
bowlturner's user avatar
  • 49.2k
43 votes
4 answers
5k views

Is there a scientifically sound faster-than-light travel system for a spaceship?

Recurringly in Sci-Fi spaceships manage to make it to lightspeed and above. Is there a scientifically plausible explanation of such capacity? How does it impact the spaceship's design and its ...
Sheraff's user avatar
  • 12.5k
26 votes
8 answers
3k views

How could a generation ship maintain a source of potable water?

A generation spaceship (a spaceship designed for multiple generations of humans to live in) could sail through the galaxy for hundreds of years before finding another planet, let alone a planet with ...
Terri M.'s user avatar
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52 votes
17 answers
4k views

What would be the most effective way of keeping a psychopath with a spaceship from wreaking severe havoc in a suicide crash?

Any spaceship over several hundred tons is an extremely dangerous weapon in the wrong hands, particularly if it's intended for reentry. Made mostly of metal and possibly shaped to be able to breach ...
neph's user avatar
  • 3,362

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