I think some day it will be possible but the human body will not allow for that so i think we will have to be incapicitated to do it

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"Let Valor Not Fail"

Let's hope not because then we will have no hope of communicating with alien lifeforms in person.

I'm no physicist either, but I would think time dilation would be a problem. Because the faster you travel, the slower time becomes.

To be honest, I think we're less than a hundred years away from being able to ditch our human bodies completely for other forms of containment. Maybe spaceships will not be able to travel at the speed of light. But that form of locomotion might become impracticle anyhow, when compared with beaming a persons personality at the speed of light through space and then using nanoassembly to build a body for him/her upon reaching their destination.

Is that true?

Look up the Hafele and Keating experiments with atomic clocks, some good information there.

Travelling at the speed of light would basically mean that it would be possible for astronauts to travel far into the future while aging very little. A crude way of looking at it would be seeing time and space as being represented by two different axis's on a graph. The steeper the line goes up up the speed axis, the less it moves along the time axis. A nearly vertical traveling line (representing the fastest we can travel) would mean next to no movement along the horizontal time axis.

Wish I were able to explain it better.

So what would happen, the rest of the world age and they don't? Would it take the same amount of time but just seem shorter to the people in it?

Pretty much. The astronauts would finish a journey that takes thousands of years without aging much, but time would go on normally on Earth. Meaning we would have a big send-off for the guys, but would never know if they actually made it to their destination thousands of light years away.

I don't know a whole lot about physics (its to complicated), but I do know a thing or to about space in general and based on my comprehension nobody has given you the specific answer to the question. THERE IS NO SUCH THING AS HYPERSPACE. I just put that in caps so everyone will be able to notice it, my intent is not to insult or simulate yelling.

There is something called Minkowski spacetime which I don't fully understand but it doesn't work the same way I know that much. The concept behind hyperspace is that a spaceship would somehow slip into an alternate dimension where either the usually laws of physics don't apply or the distance between objects is shorter. That is something science fiction authors made up. It doesn't really exist in science.

The concept of folding space time (like warp drive in star trek to an extent) or creating wormholes are probably the only viable means of space travel and neither would be particularly easy (assuming either are possible). One thing is certain though (well near certain) that an object within our own universe could never ever achieve anywhere near light-speed as it would attain infinite mass and tear itself apart in the process. There needs to be some kind of way of negating the effect inertia, gravity and other forces would have on matter (such as a ship and it's inhabitants) in order to achieve such speeds.

Even if we were capable of space travel I think people are getting their hopes up regarding sentient life in the galaxy. They wouldn't be like the Vulcans or the greys or anything like that. They would be truly inhuman creatures who we might never be able to communicate with directly. It's not that we couldn't share ideas, but you wouldn't be able to have a real time conversation with them and an advanced civilization like ours would probably be rare.

"...Even if we were capable of space travel I think people are getting their hopes up regarding sentient life in the galaxy. They wouldn't be like the Vulcans or the greys or anything like that. They would be truly inhuman creatures who we might never be able to communicate with directly. It's not that we couldn't share ideas, but you wouldn't be able to have a real time conversation with them and an advanced civilization like ours would probably be rare..."
Given the diversity and really odd life forms found on our own planet, that which has evolved on planets with atmospheres and an environment dissimilar to ours, the possibilities are mind boggling.

For instance, there is a moon orbiting one of the planets in our solar system that scientists believe has a frozen covering over liquid water (liquid because of sub-surface volcanic activity. Given the life that has evolved around our under sea "black smokers", there could be aquatic life on that planet despite its frozen surface.

Given that, it is possible that the life that exists there could be some form of large, intelligent crustacean-like life form. Imagine the possibilities. We could transport representatives of that existence to our planet in aquarium capsules that simulate their environment. Think of the possiblities...boiled and dipped in melted butter!