Quote Originally Posted by drewmandan View Post
Ships can travel arbitrarily close to the speed of light,
I don't know of any ship that will ever reach near 186,000m/s, and where are they going to get the immense power to do it and not run out before hand? Do you really think there's something out there with the power needed like you state that can travel at light/superluminal speeds?

Quote Originally Posted by drewmandan View Post
and I still don't see what sound has to do with this.
You don't know what sound has to do with this? Well, you're either going to have to travel at the speed of sound/supersonic/hypersonic or light/superluminal speeds to get anywhere light years away at a fast pace. So far we don't know of any ships that travel at the speed of light or superluminal speeds, so obviously they're traveling at supersonic or hypersonic speeds. I really don't know what the speed of sound has to do with supersonic or hypersonic speeds either, LOL. Just kidding. Unless you think aliens are capable of traveling with a HEMI in their space ship to get here lightyears away, then I suspect you believe they're going at the speed of sound or faster since we know that's actually possible.

On the other hand, they could use wormholes, which once again is VERY unlikely. Unless they've learned how to make two black holes from their galaxy to ours and connect them and keep them open long enough for them to travel from there to here.

Quote Originally Posted by drewmandan View Post
Your comment about mass is wrong. Momentum approaches infinity, not mass. In classical physics, momentum is just the product of mass and velocity, but in both special relativity and quantum physics, momentum is a fundamental property of an object, just like mass. In fact, the mass of a moving object is invariant, meaning it never changes.
Then Einstein was wrong, poor guy. You better go back and fix Einstein's theory since he's wrong. Even if Einstein was wrong about mass being infinite, or the scientists that looked at his theory and gathered that mass is infinite are wrong, he still believed traveling at light or faster is impossible, at least in our time.

This is from a "time travel" article.

According to Einstein's theory, approaching the speed of light would theoretically slow time, traveling at the speed of light would make it stand still and traveling faster than the speed of light would reverse time.

But Einstein also showed that traveling at or faster than the speed of light is impossible because mass at these speeds becomes infinite.
A law of science, determined by Albert Einstein, says nothing can travel faster than the speed of light -- 186,000 miles per second. The fastest object made by man, the Voyager spacecraft is travelling along at 11 miles per second. At that rate, the scientific probe Voyager, launched in 1977, would take 73,000 years to reach the nearest star.
If aliens can visit, how did they get here?

Quote Originally Posted by juroara View Post
ppssssttt.......... >_>

they say they travel in another layer of the physical unseen to the human eyes. where you travel at the speed of thought. the only way to inter stellar travel and get anywhere on time is to get, dimensional!
Right. Like Abraxas from Fantastic 4?