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Q&A

Posts tagged space-travel

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Q&A In what kind of timeframe would there be interplanetary trade?

I have two binary planets, with technological level of about the present day. They've developed communication between the two planets, and scientists are trying to develop a method of getting peopl...

8 answers  ·  posted 8y ago by Xandar The Zenon‭  ·  last activity 8y ago by Xandar The Zenon‭

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Q&A Is stealth re-entry possible?

Let's say I happen to find myself outside of earth's atmosphere [right at the Kármán line 100km up] one night and don't wish to cause a fuss as I descend to my home. I am stationary in regards to...

3 answers  ·  posted 8y ago by King-Ink‭  ·  last activity 8y ago by King-Ink‭

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Rigorous Science How to quickly leave a planet for another planet en mass starting out from stone age tools?

An alien race decides to test the hability of humans to survive and engage into space travel, for whatever reason. The planets The aliens prepares a pair of Earth-like planets revolving around a ...

5 answers  ·  posted 8y ago by Victor Stafusa‭  ·  last activity 8y ago by Victor Stafusa‭

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Q&A How can I avoid a spark on an oxygen-rich planet

My NASA-like scientists in a system far, far away, but otherwise similar to us today, understand that their nearest sister planet, Sunev, is habitable for mankind. With one exception: it is almost...

3 answers  ·  posted 8y ago by Mikey‭  ·  last activity 8y ago by Mikey‭

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Q&A Cultural norms regarding Law and Order on Generation ship

Earth, far future: We built multi generation ship which can get 20 000 people to another solar system in next 20 generations (600 years) For scope of this question assume that ship itself is well ...

10 answers  ·  posted 8y ago by Pavel Janicek‭  ·  last activity 8y ago by Pavel Janicek‭

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Q&A Travelling through space around Worlds inside Nebulas

I am building a habitable, Earth like planet, but instead of it being in a solar system, it is inside a Nebula. The actual composition of the Nebula is uncertain at this point, but I am considerin...

2 answers  ·  posted 9y ago by Jimmery‭  ·  last activity 8y ago by Jimmery‭

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Q&A Surviving Re-entry in only a space suit

Because who needs a space craft? Picture this: While performing a routine spacewalk, outside your small, 1- man space pod, a fault in the propulsion system controls causes the pod to explode, laun...

2 answers  ·  posted 8y ago by Chef Cyanide‭  ·  last activity 8y ago by Chef Cyanide‭

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Q&A Software to ease my interstellar travel calculations

When I asked my previous question about love on multi generation ship, I left blank the where are the people going. Simply because I do not know. Now I am in search of software which would ease s...

3 answers  ·  posted 8y ago by Pavel Janicek‭  ·  last activity 8y ago by Pavel Janicek‭

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Q&A How would today's nations respond to a nationless organization setting a colony on the moon?

The year is 2020, and an organization known as Helios successfully settles a colony of 200 people on the moon. The colony is self sustaining and is mainly a research center, with most of its resid...

4 answers  ·  posted 8y ago by DohnJoe‭  ·  last activity 8y ago by DohnJoe‭

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Q&A How can I connect the rotating portion of my space craft to the non-rotating?

I have a large rotating (think wagonwheel) portion of a space-craft that, at the hub, connects to a non-rotating scientific research station. Imagine a football (soccer) field sized research and l...

4 answers  ·  posted 8y ago by Mikey‭  ·  last activity 8y ago by Mikey‭

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Q&A If Venus mission finds life, will we shift our attention from Mars to Venus?

Guilty pleasure: I just returned from one tinfoil-hat type of internet pages which suggests that we are being visited by Aliens who live on Venus. The fact, that we have only pictures from the grou...

4 answers  ·  posted 8y ago by Pavel Janicek‭  ·  last activity 8y ago by Pavel Janicek‭

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Q&A Launching a Generation Ship

The human race has colonized the solar system with permanent settlements on all of the inner planets and outposts beyond. Vast space stations pepper the voids between orbits and massive mining/ref...

1 answer  ·  posted 8y ago by Henry Taylor‭  ·  last activity 8y ago by Henry Taylor‭

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Q&A Is there a drive for a spacecraft that produces decent acceleration?

For a science fiction novel I'm currently writing... The spacecraft in question is based in the asteroid belt and is not designed to approach a planet. The ship has an offensive/defensive capabil...

7 answers  ·  posted 8y ago by Smoj‭  ·  last activity 8y ago by Smoj‭

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Q&A Evolution of spacecraft with advent of cheap and effective payload launch

All of the launched human habitable space stations in orbit around Earth (such as the International Space Station, are very spindly and brittle as of current day. In a idea I'm contemplating that ...

1 answer  ·  posted 8y ago by QuiquÈ…‭  ·  last activity 8y ago by QuiquÈ…‭

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Q&A Could a civilisation exist as 'space-nomads'?

In a civilisation similar to humans (although not necessarily humanoid) living on a planet the size of Earth, could the whole civilisation (no limits on size, although I was thinking a few thousand...

15 answers  ·  posted 9y ago by blaizor‭  ·  last activity 8y ago by blaizor‭

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Q&A Generation ship design - Accommodations

What would be required for a generation space ship to give residents the best possible living situation while still using the least amount of space, given the possibilities to have access to common...

5 answers  ·  posted 8y ago by Magic-Mouse‭  ·  last activity 8y ago by Magic-Mouse‭

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Rigorous Science Viability of using randomly generated electronic radiation to mask the disposition of a fleet from passive scanners with electronic 'white noise'?

Lets say I have a space fleet flying to attack an installation. The enemy knows I'm coming but not my numbers or exact disposition. Since I'm moving much slower then C the light from my fleet wil...

5 answers  ·  posted 8y ago by dsollen‭  ·  last activity 8y ago by dsollen‭

Question space space-travel
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Q&A How would two ships travelling at light speed communicate with one another?

Supposed we have a ship travelling at the speed of light, or very close to it, or over. A second ship is travelling behind it at the same speed. The second ship wishes to communicate something ...

11 answers  ·  posted 9y ago by roryok‭  ·  last activity 8y ago by roryok‭

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Q&A How does my aliens' tractor beam work in space?

Researchers create a sonic tractor beam By Hanae Armitage 27 October 2015 1:00 pm Using a simple set of loudspeakers, scientists have figured out a way to levitate and rotate object...

7 answers  ·  posted 8y ago by chasly from UK‭  ·  last activity 8y ago by chasly from UK‭

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Q&A Gravity solutions on space vessel

I first was thinking centripetal force on a circular ship, but performing external maintenance would be extremely difficult due to the force pushing the person or robot off. Would a spherical ves...

5 answers  ·  posted 9y ago by Damien Andre‭  ·  last activity 8y ago by Damien Andre‭

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Q&A Can non-intelligent life naturally evolve the ability to space travel and to live in interplanetary space?

Can non-intelligent life forms evolve to leave their home planet and travel in interplanetary space, for instance, grow on atmosphereless icy moons and transfere spores over interplanetary space?

7 answers  ·  posted 8y ago by Anixx‭  ·  last activity 8y ago by Anixx‭

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Q&A 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, ...

10 answers  ·  posted 9y ago by Twelfth‭  ·  last activity 8y ago by Twelfth‭

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Rigorous Science What is the highest acceleration that a normal human could safely endure for (say) 8 hours?

I want to get a shuttle from place to place in a reasonable amount of time. Say, 6 to 8 hours maximum, with a short break at the midpoint to turn around. Assuming constant acceleration to midpoin...

5 answers  ·  posted 8y ago by piersb‭  ·  last activity 8y ago by piersb‭

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Q&A Taming wormholes

An ancient civilization mapped wormholes when the universe was quite young and smaller. This allowed them to reach other galaxies (wormholes from our galaxy to others). They mapped it all. Humans ...

2 answers  ·  posted 9y ago by Jorge Aldo‭  ·  last activity 8y ago by Jorge Aldo‭

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Q&A Mars as "Earth sister"

Lets pretend that Mars was a bit larger, so the gravity could hold on to the water and possible atmosphere, and then play along with the accidents that happened on earth happened at a similar tact....

5 answers  ·  posted 9y ago by Magic-Mouse‭  ·  last activity 8y ago by Magic-Mouse‭

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Q&A Creating wormholes that aren't magic

Please note for this, assume technology is being used for their creation, not any kind of space major or anything. Edit: Removed the ability to do so within systems without having generators on b...

3 answers  ·  posted 8y ago by Nonafel‭  ·  last activity 8y ago by Nonafel‭

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Rigorous Science Would it be possible to use the earth's rotation to launch spaceships to other planets?

A really simple question - if you built a space elevator then you continue building past the geostationary point to put tension onto the tether. Now if you keep building out further and further the...

1 answer  ·  posted 8y ago by Tim B‭  ·  last activity 8y ago by Tim B‭

Question space space-travel
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Q&A Efficient sublight propulsion (for "dogfighting")

Researching efficient methods of no-FTL methods often turns up engine solutions that are efficient in the sense that they have a higher specific impulse, but most such solutions seem to have a comp...

5 answers  ·  posted 8y ago by Llama_guy‭  ·  last activity 8y ago by Llama_guy‭

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Q&A Could you create a travelling planet?

Assuming fission thrusters as described here: Would a nuclear fission thruster with continuous fuel injection be possible?, and assuming drilling for the planet's molten mettle core as discussed he...

4 answers  ·  posted 8y ago by Lorry Laurence mcLarry‭  ·  last activity 8y ago by Lorry Laurence mcLarry‭

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Q&A Hive mind withdrawal and communication skills

Centuries ago, humanity have been incorporated into an alien hive mind, spread by a bacterial-like infection. The "bacteria" infects the blood and brain and allows the infected to join their minds ...

1 answer  ·  posted 8y ago by Babika Babaka‭  ·  last activity 8y ago by Babika Babaka‭

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Q&A Moving people from a dying planet onto the moons of a gas giant

A class F star (1.4 times the mass of the sun — it has to go supernova) is expanding into the red giant phrase. Its Earth-like planet, with life on it, has slowly been pushed out of orbit as it exp...

2 answers  ·  posted 9y ago by Isabella Chen‭  ·  last activity 8y ago by Isabella Chen‭

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Q&A 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 interes...

2 answers  ·  posted 9y ago by bowlturner‭  ·  last activity 8y ago by bowlturner‭

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Q&A What are the dangers of using fusion rocket engines in atmosphere?

As far as I understand, when you fuse deuterium (H-2) and tritium (h-3), you get a helium atom and a spare neutron. Basically alpha-rays? Now alpha rays are easily blocked by matter. You can block ...

3 answers  ·  posted 9y ago by Avanak‭  ·  last activity 9y ago by Avanak‭

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Q&A Could you maintain breathable oxygen for long-term space travel through shipboard gardens?

I envisioned this method of maintaining breathable oxygen. So each ship would have these gardens generating oxygen like the plants on Earth do. How plausible is this and how would it likely work?

3 answers  ·  posted 9y ago by Scymru‭  ·  last activity 9y ago by Scymru‭

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Q&A Delaying the arrival of a Generation Ship with an accident

Kaylee is a mechanic on a Generational ship. The ship has several means for propulsion and has a plotted course that goes from star to star, molecular cloud to molecular cloud. It has a Bussard Ram...

5 answers  ·  posted 9y ago by Isabella Chen‭  ·  last activity 9y ago by Isabella Chen‭

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Q&A How would a government prevent astronauts from making political statements?

In the future a major problem arose: a habit spread among the astronauts to make political statements upon landing on a new celestial body, often the statements were unpleasant to their government....

4 answers  ·  posted 9y ago by Anixx‭  ·  last activity 9y ago by Anixx‭

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Q&A Effects of suspended animation

Major Camila de Ocampo, "La Comandante", wakes with a start. As she's been trained to do when coming out of stasis, she flexes each muscle, beginning with her toes until she finally finishes by rai...

1 answer  ·  posted 9y ago by Seth‭  ·  last activity 9y ago by Seth‭

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Q&A Escaping a black hole

I'm writing a very nontechnical science fantasy with a star-ship (literally a giant spacecraft toting around a star) in stable orbit around a black hole. It uses one of the "stellar engines" mentio...

5 answers  ·  posted 9y ago by Miriam Garcia‭  ·  last activity 9y ago by Miriam Garcia‭

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Q&A 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,...

3 answers  ·  posted 9y ago by Zer0ah‭  ·  last activity 9y ago by Zer0ah‭

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Q&A Can a human fighter pilot fully grasp 3 dimensional frictionless movement in space?

My answer to this question essentially came down to the pilot being in a sphere with anything large jutting out of it. Some of the arguments made against me I feel are true if we assume fights like...

4 answers  ·  posted 9y ago by dsollen‭  ·  last activity 9y ago by dsollen‭

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Q&A Future galactic economy

Considering a distant future where mankind has spread and inhabits lots of star systems. Would there be a justification for inter-system trade or exchanges ? FTL travel may be considered, but with ...

3 answers  ·  posted 9y ago by Uriel‭  ·  last activity 9y ago by Uriel‭

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Q&A Multigeneration ship pet

Earth is dying. We mis-managed it and brought the whole ecosystem to the edge of total collapse. About 50 years ago, we decided to move humankind to another planet, and now we are almost ready. A ...

12 answers  ·  posted 9y ago by Pavel Janicek‭  ·  last activity 9y ago by Pavel Janicek‭

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Q&A What way to go about interstellar colonization is likely to be the first one technically and monetarily feasible?

A recent question concerning generation ships made me come up with a rather original alternative in my answer. It was pointed out that the concept of embryo space colonization has already been thou...

2 answers  ·  posted 9y ago by Søren D. Ptæus‭  ·  last activity 9y ago by Søren D. Ptæus‭

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Q&A How would interplanetary transits take place with a "space compressing" system?

I have a fictional technology in my world that involves being able to create "tubes of compressed space" -- essentially, you have two stations and a (straight or curved) line of space between them ...

2 answers  ·  posted 9y ago by System‭  ·  last activity 9y ago by System‭

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Q&A An interplanetary coordinate system

On earth, we use a simple but effective coordinate system which determines position unambiguously on the surface (GPS achieving accuracy within 1 meter, which speaking as an engineer, is a remarkab...

7 answers  ·  posted 9y ago by Neil‭  ·  last activity 9y ago by Neil‭

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Q&A What would happen if you attach 2 huge ion engines on the north and south side of planet earth?

I was wondering what would happen if you attach 2 Huge ion engines(I mean really really really huge) to planet earth. They should be attached on the north and south poles. Are 2 huge ion engines ...

4 answers  ·  posted 9y ago by Stefan‭  ·  last activity 9y ago by Stefan‭

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Q&A Making the First contact

Visiting the Worldbuilding site plays with my creativity and imagination. So I am going to describe the dream I had: I am member of a different (alien) culture, from a different star system. Also,...

3 answers  ·  posted 9y ago by Pavel Janicek‭  ·  last activity 9y ago by Pavel Janicek‭

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Q&A Locations for space centres

The basic question is: When is a location good enough to build a space centre on it? Some info to the function of the space-centre: The space centre has a lot of traffic, also humans. I imagine...

4 answers  ·  posted 9y ago by J_F_B_M‭  ·  last activity 9y ago by J_F_B_M‭

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Q&A Is the Alcubierre Drive relatively free from relativistic collisions?

Related to the this question about not going SPLAT. That one was for conventional travel through space at high speeds. Now I want to know about how things would work with an Alcubierre drive. I...

1 answer  ·  posted 9y ago by bowlturner‭  ·  last activity 9y ago by bowlturner‭

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Q&A Traffic in Space (a traffic controller for low earth orbit)

In a future where space travel is common, how would access to space be regulated? From what I know, currently the International Telecommunication Union (ITU) assigns slots for geostationary satell...

2 answers  ·  posted 9y ago by 2012rcampion‭  ·  last activity 9y ago by 2012rcampion‭