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Questions tagged [conceptual]

Questions regarding mission or spacecraft plans which are not material, but are only concepts.

2
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2answers
105 views

How many companies are working on creating viable spaceplanes in the near future for human spaceflight(10-20 years)

As we are goinh into 2019 and we've seen the likes of XCOR Aerospace adn Virgin orbit working towards spaceplanes. How many other companies are working on getting humans to space, suborbital and ...
6
votes
0answers
60 views

What NIAC investigations were implemented in real spaceflight? (NASA Innovative Advanced Concepts)

NIAC as in the NASA Institute for Advanced Concepts wasn't founded until 1998, so such futuristic concepts might not have come to fruition much yet. But I'd like to hear of any, or of what the ...
14
votes
2answers
809 views

Seeking concept art or photo of MAKS on carrier plane

In an answer to this question Are the US shuttle and Buran the only space planes to have launched vertically with wings exposed? Schlusstein mentioned the proposed MAKS system, which was new to me. (...
0
votes
1answer
142 views

What would the effect be if we placed all of our greenhouse gases on Mars?

I don't know how much greenhouse gases are on our planet but what would happen to Mars if we could contain the gases on Earth somehow and transfer it to the surface of Mars? Ignoring the fact that ...
1
vote
2answers
129 views

Juno possible retirement adjustment

Notice: I deeply apologize if I'm missing a Logical Issue to this Plan. Instead of ending Juno's mission in 2018 by deorbiting it into Jupiter why not follow these steps. Allow the amount of time ...
3
votes
1answer
334 views

What is the disk on NASA's anti-matter concept design?

On the concept art pictured in this link, we see a very sleek looking ship that would supposedly be powered by antimatter. What is the large disk present on the side of what appears to be the second ...
7
votes
5answers
848 views

Space travel in convoy, what are the pro's and con's?

In the novel "The Mars Project" by Wernher von Braun humans fly in convoy to Mars. Is it being considered seriously at all today, to send several spacecrafts together? Most proposed missions to Mars ...
16
votes
4answers
945 views

Can I get higher with Space Junk?

There is a whole bunch of space junk; Wikipedia says there are about 19,000 pieces of junk being tracked. With no clouds, solar energy is readily available, so the biggest missing ingredient for ...
6
votes
2answers
552 views

What are the deal-breakers with a preheated Hydrogen gas tank orbital rocket?

Consider this thought process: In selecting the propellant for a reaction engine, lower atomic mass is better because equipment is largely temperature limited, and lighter gas will get higher ...
12
votes
1answer
206 views

Are there any proposals to vacuum up gases in orbit for use as propellant?

Space stations like the ISS orbit at an elevation that puts them squarely in the Thermosphere, and while this has extremely rarefied gas (which is probably more accurately a plasma at many times), it ...
3
votes
2answers
198 views

Could a skyhook be used to remove space junk?

Is it possible to remove the space junk having orbital velocity with the help of a skyhook? Has any country in the world planned to place a skyhook in orbit?
5
votes
3answers
980 views

Could a black hole be used as portable gravity device? [closed]

I don't use the term artificial gravity because, the gravity from a black hole is real. If you have harnessed and are able to control a black hole would you be able to use it as portable gravity ...
32
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3answers
2k views

Could a partial space elevator be practical and useful?

Would it be technologically and economically practical to build and operate a space elevator that only provided transport between lower and higher orbital paths? Such a mechanism would only avoid ...
20
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2answers
1k views

Is it possible to build a Dyson sphere or its variant in our solar system based on our current technology?

Dyson sphere, a concept coined by the physicist Freeman Dyson, is a solar megastructure built around our Sun to harvests most of the radiated energy from it. While this sounds impossible for now, ...