# Tagged Questions

Questions about spacecraft journeying to other stellar systems.

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### Do things get dirty in space? [migrated]

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 ...
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### Special Relativity as Applied to an Interstellar Starship?

I'm once again confused by the twin paradox. Let's say I am on an interstellar starship flying at 0.6c from a star 30 light years away from Earth to a star 50 light years away from Earth and 40 light ...
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### Where can I look up the 3D positions of the closest stars? [duplicate]

The problem: I want to simulate a travel from Earth to the closest 15-25 stars. Which is the fastest way to accomplish this? What i have: I currently have the distance between Earth and the nearby ...
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### 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 ...
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### Road map for a faster spaceship [closed]

New Horizons, speediest yet, is currently running at about 15 km/sec relative to the sun. What is the roadmap for future ? How is it possible to reach much faster speeds ?
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### What's to be gained from the New Horizons mission once it's beyond the Kuiper Belt?

Now that we have seen what Pluto has to offer and New Horizons is headed to the Kuiper Belt, is there anything we can gain from the mission in interstellar space after it travels beyond the Kuiper ...
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### The fastest Probe we could build now

I found this at http://www.nature.com/news/the-exoplanet-next-door-1.11605 Even when launched by one of the most powerful rockets on Earth, boosted by a gravitational slingshot around Jupiter, ...
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### Detecting motion

In the television show " Ascension " they are supposed to be 50 years into a 100 year journey to another Star System but get this, they never left Earth . They are here on Earth in a huge biosphere . ...
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### How would vehicles travel through the interstellar medium with its such low density?

I've heard from a number of different places that the density in the interstellar medium can have an average of 1 atom per centimeter cubed. Perhaps I have a wrong understanding of what 'nothing' is (...
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### Voyager spacecrafts

Will the Voyager space crafts actually reach another Star System in 63,000 years? If the answer is yes, what will be powering the crafts to keep them going for so long?
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### How should one rationally deal with the issue of space travelling alien civilizations?

What kind of reasoning is appropriate to understand the as of today unanswered question of whether there are (other) interstellar space travelling civilizations in the Milky Way? We have already sent ...
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### Does near light-speed travel doppler-shift the light from the target into gamma rays?

If a space ship travels at near the speed of light towards a star, wouldn't the light from the star doppler shift into gamma rays (or worse?) and become lethal to life and destructive to space ship ...
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### Speed comparison of both voyagers

I came across this page which provides (mostly extrapolated) speeds of both voyagers. Assuming they are fairly accurate, any reason why the speed of Voyager 2 (5-6 km/sec) is less than that of Voyager ...
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### What is the optimal escape trajectory from near a black hole?

Consider a space ship that is being drawn closer to a black hole. The crew begins to notice the effects, and discovers that they are nearing the black hole. They then manage to halt their ...