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Questions tagged [space-travel]

For questions about the process of traveling through space, including in orbit around a planet or moon. Consider also [spaceships]. See also the tag information (click "info") for more details on when this tag applies.

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Motivations for interstellar colonizations

Question is ultimately asking why would we do this? A few parameters first... Technological: Our current knowledge of physics is correct and there is no such thing as faster than light travel, nor ...
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How can a spaceship unknowingly interfere with tides on a planet?

I've asked before about my polytheists with competing moon gods. I now have a better understanding of how tides -- a very visible manifestation of lunar influence -- work with multiple moons (thanks),...
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Can a spaceship traveling close to light speed be knocked off course by a gamma ray burst?

This was spawned from this question about Blueshifting (BS) when traveling near the speed of light. I had found this while learning about the other question. @99.99995 percent c And ...
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Being cooked for dinner! or What Danger of Blueshifting EM into X-rays and beyond?

When doing some research for some of the resent questions proposed, I ran across an article that pointed out a danger of traveling at extreme speeds in normal space as a high percentage of c I was ...
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Sovereignty and interstellar travels

Let’s consider the typical setting of 20th-century science fiction writers, both Western and Communist. Namely: Transportation within planets is cheap, quick, and is not significantly restricted; ...
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How young can astronauts realistically be in the 2040-2050's? [closed]

With the return of space odysseys and a boom for space studies, could future astronauts be taught since primary school and therefore be sent to space in their late teens (after one ultra last ...
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8answers
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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 ...
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7answers
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Could an aquatic civilization discover space travel?

Building from this and this, given an aquatic civilization somehow manages to forge tools and build computers, could it build space-faring devices? Also another development that would come earlier (...
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Occultic FTL Drive

In a hypothetical futuristic society that blends arcane magic with science, humanity has spread across the galaxy. FTL drives exist, but they are relatively slow and must exit at the outer edge of a ...
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3answers
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Can we breathe the moon's crust?

According to this answer to what the moon is made of, the moon's crust is, among other things, 43% oxygen. Assuming we were to go back to the moon within the next couple of years with the goal of ...
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3answers
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Could a civilization invent space-faring technology on planet that mostly lacks any kind of metals?

Imagine a species that evolved on a planet where there was no metal (or not much) of any kind. They, of course, discovered fire and were able to start building buildings and basic machinery from ...
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3answers
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What if time travel had to take into account spatial distance?

In this setting, humanity has advanced to the technological capability of extra stellar travel via faster-than-light drives. However, due to distances between inhabited areas being extremely large, ...
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What is the likelihood that inhabitants of an alien planet similar to Earth geologically would have races?

First off, let's get definitions out of the way: A "race" here is defined as stable, heritable, phenotypic, clearly visual distinction between large demographic groups living in different geographic ...
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Could a civilization achieve spaceflight without inventing advanced weaponry along the way?

The question is fairly simple. Could a civilization progress so far as to have spaceships while still using swords, spears, and bows as their most advanced weaponry? (what those weapons are made of ...
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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'...
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How could combat involving Alcubierre-drive starships occur?

In a setting with Alcubierre-drive starships (as per my answer here), it is inevitable that once the technology becomes common enough and enough different polities and organizations have such ships, ...
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What would an external observer see when passed by an Alcubierre drive ship?

My answer to the question Is there a scientifically sound faster-than-light travel system for a spaceship? involved an Alcubierre-drive starship. However, that then got me thinking. What would an ...
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7answers
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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 ...
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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 ...