interstellar-travel's questions - Chinese 1answer

124 interstellar-travel questions.

An electric turbine engine used in planes have nowhere near the thrust needed to lift a rocket anywhere. What if the amount of electricity needed to lift a interplanetary rocket delivery system and ...

I was watching this on the JPL Youtube channel and it doesn't have much context other than 2 minutes of footage, and cuts to slides with some information, but not a lot of information. I'm wondering ...

I think I might have understood what this XKCD comic is trying to do. The diagram is proposing to use the Oberth effect at closest approach to the sun to escape the solar system! (image license: CC ...

Please forgive me, I'm a stargazer not an astronomer, nor a rocket scientist. If one could get a complete, fully fueled Falcon Heavy assembly into space, say for example by sandwiching one between ...

I heard that if you travel at the speed of light or faster (say, to the Kelper systems ) and come back, thousands of years may have passed but you haven't experienced more than a few. How is this ...

Does anyone know of any modern (1990's - present) computer modeling of the Orion pusher plate and its reaction/survivability to repeated plasma impacts? Regarding the 1950s/1960s Orion Project using ...

My thought process is that there is very little friction in space minus gravitational pull. Which could be a good thing if you wanted to go faster or slow down. The question is, is it possible to ...

I have recently had a renewed interest in comets and how comet tails are formed. From studying this process, a thought occurred to me that perhaps plasma ions can be created within a long hollow ...

I'm writing a computer game involving space exploration, where the player will come across space ships/stations that are hundreds/thousands/tens of thousands of years old. I'm also trying to make it ...

Assuming we ever manage to solve the energy generation problem (and whatever other problems may face it) and build a functioning Alcubierre drive, how "fast" would we be able to travel? That is, from ...

Is it possible for Voyager 1 or 2 to reach any other star? If yes, which one is it and how much time does it take to do that? And in which direction are they now, and could we still communicate with ...

Rocket propulsion is based on Newton's laws. The faster propellant is expelled, the faster the rocket is accelerated. At what speed is propellant expelled in a normal rocket? What are the factors ...

https://worldbuilding.stackexchange.com/questions/104593/can-you-get-an-orbital-mass-driver-to-work-this-way-to-propel-in-space-without Using balloons to carry a blimp or suspend an electric rail ...

So, I understand that to transmit information across interstellar distances, you need to use a lot of power (or less bandwidth?), something for example a small space probe wouldn't exactly have. If we ...

What is used to protect a Mars or possibly interstellar spacecraft against meteoroids and asteroids? How risky it it to travel through space and does higher speeds equal more risk? Would a long ...

Has anybody read, or does anyone know of, a particular paper on the amount of time humanity has to "wait" before venturing in actual interstellar travel? It discusses the optimal time to launch our ...

I'm pretty certain this is a "no", but I'm a biologist, not a space scientist, and I'm attempting to answer this question over on Biology.SE - basically, if we launched a (very slow) craft/object ...

What is the maximum (theoretical) velocity that can be achieved by solar-sail technology? Can we get close to the speed of light with that?

Proxima b is an Earth-like (i.e. rocky) planet, in orbit around the star Proxima Centauri, approximately 4.243 light years from Sol, our home star. If I had a space vehicle capable of accelerating ...

The orbits of the planets are coplanar. We send probes out along this plane to explore planets. Why can't we send a probe perpendicular to this plane (say due north from the earths perspective) and ...

What is the best propulsion for an interstellar ship? with the current technology If we sent a spacecraft in this decade or the next, what would be the best propulsion for that ship? I speak of a ship ...

The space probes Pioneer 10, Pioneer 11, Voyager 1, and Voyager 2 are the first man-made devices to have escaped from our solar system. The main problem they face is the lack of power source in them. ...

if we could capture an asteroid or meteor, can we use it as a vehicle for space travel? From what I understand, propulsion is a result of mass flow, so we could use a rail gun configuration to propel ...

I've seen the company Positron Dynamics claim they have a potential solution to interstellar travel through their proposed antimatter propulsion system. More often then not these advanced propulsion ...

What is the actual feasibility of interstellar travel? For instance, a manned journey to Proxima Centauri, given the distance, what technology would need to be developed/perfected for such a journey?...

To travel once in space, not only using gravity as a method of propelling, could pressurised gases work? The ubiquity of gases such as helium or hydrogen being brought into the craft, once compressed ...

What is regarded as the current single biggest challenge/hurdle limiting space exploration? Once that tipping point has past it would pave the way for future exploration to dramatically increase.

Based on today's technology (requiring no new engineering hurdles to be solved), could a new interstellar space probe overtake Voyager 1's distance? It doesn't need to go in the same direction, but ...

Between power limitations and aperture-limited diffraction I just can't see how it's possible.

I recently calculated using $E = 0.5mv^2$ that one kilogram of mass traveling at one tenth of the speed of light would have a kinetic energy of 449.4 trillion joules. Relativistic effects are ...

I'm not a physicist or rocket man, but I laid awake thinking about this all night and I just wanted expert corrections to help with my basic understanding. So... 483,000 miles per hour is how fast our ...

Aside from the obvious answer of being able to easily avoid the larger bodies in the Solar System. I'm primarily curious as to the mechanics of this endeavor -- would there be any benefit to ...

What elements travel at the speed of light. I was under the impression it was light and gravity but apparently electromagnetic waves (radio waves) travel that fast as well. And is element the right ...

I am working on a story where a spaceship is on a mission to colonize the exoplanet Kepler-186f. However, after hitting of small meteor, they need to find a closer candidate for the new colony. I want ...

A recent question about Project Starshot's communication asks about one of the seemingly insurmountable problems with this project. There is however another problem that has bugged me ever since I ...

Which spacecraft will be the first for which the Sun would become the second brightest object in the sky? When that will happen and how far? What would be the most efficient direction to fly in ...

Due to gravity and movement an object can be accelerated (positive/negative) and slingshot into another direction. This has been used various times, but as far as I know with orbital objects like a ...

...other than budget, obviously. Our computers nowadays are good enough that we should be capable of sending a probe to a neighbor star system and back, and get some pretty good analysis reports. We ...

Sending a signal at interstellar distance requires enormous power - something of order not too far from energies of the stars. Even if we harness the power of stars, modulating that signal would take ...

If a space craft is to travel at 0.6 c, how must one design a protection system such that any and all debris collisions with the sail do no render it damaged for further use? Is it possible to employ ...

Apologies if this has been asked before using terminology for somebody more familiar with the subject matter. I've searched but cannot find an answer. Assuming space travel was possible (to other ...

A random question. At the very first try we succeeded. Though it might not be strange, What was the probability of surviving so long with so many external variables and constants.?

From my understanding, space is not entirely empty. Infact, between the voids of space are molecules or maybe individual atoms of hydrogen just floating around. I understand that gathering massive ...

I want to know how much light is there for a spacecraft that flies from earth to Proxima Centauri. I know there's the sun but what happens after the spacecraft leaves the solar system? Are there stars ...

What sorts of unique problems are there with planning a trajectory to Proxima Centauri, besides it being out of the plane of the ecliptic? (I'm guessing if you've got the juice to make it there, ...

How feasible is it to use a cyclotron in this manner for space propulsion? Inject small amounts (aliquots) of ionized matter into cyclotron at some high integer multiple n of the cyclotron frequency $...

Apologies for the long question. With all the speculation surrounding the newly-discovered Earth-sized planets a "mere" 40 ly distant, I'm revisiting earlier musings on ways to send interstellar ...

Answers.com lists the New Horizons to have the fastest rocket. Is this info still valid? 7 light hours in 11 years at 50,000 km/h?

Given that a spacecraft's purpose is to leave the Solar System as fast as possible, how deep into Jupiter's gravity well would be optimal for an assist in the planet's orbital direction? Jupiter's max ...

Since the transit method of detecting exoplanets requires perfect alignment of orbits, would a Kepler-type telescope yield more exoplanet detections if sent out of our solar system even to relatively ...

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