worm holes or warp speed. But this isn't Star Trek. The physics just don't work out.
Both wormholes and warp drives are theoretical.
They[i] could exist. Assuming by warp drive you mean an engine that moves space-time rather than the ship.
Maybe they live among us?
And they're not conquering, gather resources making any diplomatic negotiation or anything that could benefit either their civilization or both. Seems a bit pointless. And how would they get here in the first place? Intergalactic/interplanetary travel? Then why would they live like an extremely primitive race like us?
and always have?
Then they don't fit the definition of 'alien'. Or at least, they don't fit the definition of something from another world.
Maybe they live underground, or underwater or something.
Why would you live in an area void of any sun? It would be incredibly dark and unless you're unaware of the molten rock and lava beneath the crust, they'd probably burn. To be honest, it would be illogical for a civilization to choose a dark, dry and extremely hot (hot enough to destroy all(?) biological tissues) when a few miles above there's a haven with water, resources, a nice temperature etc.
And underwater is a bit silly too. Once again, if they went so deep they were undetectable it would probably be void of sun and heat and the pressure would be ridiculous. A civilization would have to build extremely strong structures to survive whilst they're also in the oxygen-lacking, sunlight-lacking, extreme pressure environment filled with strange squid. Once again it's much more logical to live on the surface.
maybe they just made it seem that way, maybe they found out how to turn invisible.
I don't understand this. Making yourself invisible doesn't make you get to another planet. Hell, we've already invented cloaks that make you invisible.
well if light can be moved by gravity, thats how black holes r black, the suck light in due to HUGE gravity. couldnt u make anti gravity to repel something?
I am honestly not a physics genius so could be completely wrong on this but as far as I was aware there's a thing called space-time that all entities sit on and ones with more mass and thus more gravity bend space time. So normally space time would look like:
______
But when there's an object it looks more like:
__* __
\\/
This ASCII may have screwed up big-time but the point is basically where the space time has bent downwards. When the light travels rather than go straight into the object it goes down that slope and therefore into the black hole. So I think it's technically the bend that makes the light direction change. As I say, I'm no expert.
Also, as far as we are currently aware travelling at the speed of light is impossible as time stops. Any faster than the speed of light and you go back in time. However, with huge tubes and a bunch of electromagnets and cameras called particle accelerators we've manage to throw atoms around circuits at practically the speed of light.
There is no way in hell we would fight them learn of them, because if they would want to watch us in secret, they would.
True, if aliens wanted to watch us in secret they would. But that would imply that only one race has developed interstellar travel and only one alien race has found us (which is incredibly unlikely) or that no races have found one tiny little planet orbiting a small, insignificant star in a pretty barren solar system on a thin arm of a fairly mundane spiral galaxy which is so much more likely it might actually hurt someone's head.
Also I don't think any intelligent race would presume that we would suddenly rage war as soon as we meet an alien. I think they'd understand that if they showed peace we would too.
in all our sci fi movies we came to war with the aliens( 90% of the time basically)
In all our fantasy movies griffins and ents exist (90% of the time basically). That does not make it true. Nor does that guarantee that any visiting race will be hostile or our actions would be that stupid.
the continent of Europe,China
Epic fail.
Are Aliens real? Is the Pope Catholic?
Do UFOs exist? Does the Pope let paedophiles get away with their crimes? South Park reference FTW. ;P