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Questions tagged [space-travel]

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1 vote
1 answer
102 views

Food in outer space [closed]

Considering that soon (or maybe in the next 100 years or so) people will be going on long voyages in space, is there something to eat in space (as an analogy, consider fish in seas) that they may ...
RS123xy's user avatar
  • 21
1 vote
1 answer
529 views

What would happen if you jumped out of a moving spacecraft? [closed]

I've watched a film where one of the characters claimed to have rapidly disembarked a moving spacecraft during a 5g burn (?!) and immediately wondered how he survived. For example, you're on a ...
Malekai's user avatar
  • 165
3 votes
1 answer
82 views

Orphaned star systems and intergalactic travel (in fictional context)

Context: I'm looking for some authority on a particular idea that I brought up in regards to a new update brought out for a space travel sim game, Elite Dangerous The vessels in that game can travel ...
Andrew's user avatar
  • 33
1 vote
1 answer
170 views

How fast does a spacecraft have to be to enter a primordial black hole without being torn apart?

If there really is a primordial black hole beyond the Kuiper belt, we can send a probe to the black hole and into it. But how fast must the probe be in order to enter the black hole without being ...
user30007's user avatar
  • 1,236
1 vote
0 answers
72 views

Orbitally convenient Mars-to-Earth transit times?

Are there any peculiar solar system layouts that would result in highly efficient transits between Mars-to-Earth? I am aware of a Hohmann transfer orbit, but can other planets be used to "sling-shot" ...
Sapiens's user avatar
  • 19
0 votes
1 answer
2k views

Farthest Orbit around the Earth? [duplicate]

What is the farthest orbit that can be achieved around the Earth? How fast is that? Not the question below: Feel free to answer in a comment I ask because of this question: https://worldbuilding....
Muze's user avatar
  • 1
8 votes
3 answers
440 views

Explaining gravity assist to a 6-year old

We've been talking about Cassini with my 6-year old daughter recently and I've mentioned that it picked up more speed by passing close to Venus (twice), Earth and Jupiter. But then, I've struggled to ...
alecxe's user avatar
  • 227
5 votes
1 answer
348 views

In zero gravity - I'm floating inside a torus as they spin it up, do I float do the "ground"?

Imagine this scenario - I'm in a space station with one of those huge torus shaped constructions, that you spin to simulate gravity through centripetal force. But it's turned off right now, so I'm ...
Hans Sjunnesson's user avatar
2 votes
0 answers
122 views

Do interstellar rocks pose a threat to interstellar travel? [closed]

In the recently released movie Passengers the ship hits a chunk of rock about the size of a softball that punches through multiple layers of hull and creates a problem. Assuming that a spaceship is ...
Tyler Durden's user avatar
-7 votes
2 answers
572 views

Was NASA's moon mission completely fake? [closed]

I really want to know whether NASA's Moon mission really was a hoax, or if it is a fact. Since there are many points and scenarios which proves it as being filmed in a film studio with controlled ...
HOAX's user avatar
  • 11
1 vote
1 answer
129 views

Space Travel and length of time [closed]

So I read that if an astronaut travels at the speed of light and goes to a nearby star system , when he or she returns, he or she will have aged 10 years but 1000 years will have gone by on Earth. ...
Peter U's user avatar
  • 1,619
2 votes
1 answer
179 views

What would the cost be of visiting an asteroid?

I'm trying to think through what the cost would be of an unmanned mission to a nearby asteroid. To me it seems like the high-level costs would be the fixed cost of the "spaceship" itself (including ...
dudemonkey's user avatar
1 vote
2 answers
226 views

can we use connect a long pipe with space station and use vacuum for fuel transfer? [closed]

We all know that we need a lot of fuel to escape from earth. Even 90% fuel of an spaceship is wasted in escaping the earth which definitely affect our power to explore the universe. we have to do a ...
Ravi Singh's user avatar
0 votes
1 answer
436 views

How to get from the earth to another planet/ the moon? What happens on the way? [closed]

I have a problem explaining for my students how to get from the earth to the moon? Is there someone who can give a good explanation? I Think these are words that might be included. Escape velocity, ...
Eirik's user avatar
  • 11
1 vote
2 answers
10k views

What would happen if a rocket traveling at speed of light would collide with a planet (like earth)? [closed]

Let's assume it is possible for a spacecraft to travel at the speed of light (I've read the interstellar book by Kip Thorne, apparently this is theoretically possible if you swing around two black ...
mohnstrudel's user avatar

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