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Striking a 1 gm meteoroid at 10 % c with a structure like ISS, would not even slow the 1 gm meteoroid down much. It would make a small hole in, go through and a small hole out. The affected areas would vent atmopshere and need to be sealed, but the structure would survive. Going from 10 % to 9.98 % of light speed. IF the craft was heavily armored with 4 ...

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If you are abit more careful about making the statements, then "both perspectives" are actually correct. Let me be more concrete and explain. Let $E$ be the one who stays on Earth and $S$ be the one who is on the spaceship. The first issue you have is you said "let's say seven years passes on Earth" - this is an ambiguous statement: from whose perspective? ...

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Absolutely not. Both you and the people on Earth would see each other moving $7$ times slower. To repeat myself: you would see them going $7$ times slower and they would see you going $7$ times slower. This is because of the main principle of special relativity. As long as neither of you is accelerating there is nothing to choose between your frame of ...

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Einstein's equation is: $$G_{\alpha\beta} = 8\pi T_{\alpha\beta}$$ In this equation $G_{\alpha\beta}$ describes the curvature of spacetime and $T_{\alpha\beta}$ describes the mass/energy distribution, so the equation relates curvature to mass/energy. Solving this equation is the basic task in general relativity. There are two ways to look at the ...

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Since you don't locally travel faster than light it is hard to call what you are doing FTL if you don't contract on one side and expand on the other. That said, you don't have to contract space in front of you. The Natario drive is claimed to pancake the space in front of you, thus reducing the distance to your destination but without contracting space in ...

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