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Results tagged with space
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user 2087
For questions related to outer space, stellar systems, stars and other astronomical phenomena.
2
votes
Which direction would be the best to send a Colony ship off towards?
You should not consider core and rim-ward in this scenario.
The Milky Way is around 150 000 light years in diameter. The proposed 500 light year travel is just 1/300th of that. It's like the differenc …
- 5,797
21
votes
How big can a space empire get?
It's difficult to make space empires work within known physics
Travel times would be far longer than experienced by any earth-bound empire. …
- 5,797
7
votes
How Would a Post-Planetary Civilization Measure Time?
Will they want a universal time?
Universal time is a recent concept which rose to importance with the invention of the train. Before the train, two cities may both have defined "noon" as when the sun …
- 5,797
19
votes
Accepted
Space station mass per person
Also, the kind of space station you envision wouldn't be in low earth orbit, and so not need to boost its height regularly. There's equipment saved on that too. …
- 5,797
2
votes
Do different star systems experience time differently?
Reports of the fastest objects in the universe [1,2] posit that there could exist planets that travel as fast as 30 million miles per hour, or 0.04473 times the speed of light. This works out to a sma …
- 5,797
5
votes
Interstellar commerce: how accessible are oxygen sources in space?
Given a power-source to separate chemical bonds, Oxygen is in plentiful supply. Examples include:
Oxygen is the most abundant element in the atmosphere of Mars. Its atmosphere is mainly CO2, but CO2 …
- 5,797
13
votes
Can I send S.O.S in space with just a conventional cellphone?
A cellphone from our era transmits with a power between 0.6 and 3 watts. For comparision, the Voyager probes had a 12 watt antenna. To succeed, the Voyager had to aim its dish at Earth and large radio …
- 5,797
5
votes
What distinction could there be between space torpedoes and space missiles?
Torpedos make use of the enemy ship's electric and magnetic fields.
Background: Some SciFi settings feature propulsion systems based on expulsion of ions or plasma. Yet others feature a strong magnet …
- 5,797