In a vacuum light travels at a constant speed: 299,792,458 meters per second. This speed seems instantaneous, but even at this speed; it would take a traveler from Earth over two years to reach our closest neighboring star. To make galactic space and colonizing of extra-solar planets possible, we would have to travel faster than this.Is faster than light (FTL) travel even possible? According to Einstein’s theory of relativity, matter gains mass during acceleration. Accomplishing the acceleration that would achieve light speed would give that matter infinite mass. Thus, to move that matter, it would require infinite energy. To go beyond this speed limit then would require even more than infinite energy which is obviously impossible. So according to Einstein, no, FTL travel is not possible.There are though, suggested ways of achieving FTL speeds. Warped space-time, wormholes, and zero-point-energy fields are theories for breaking the FTL barrier.Warped space-time theory is part of General Relativity. This theory states that in curved space time, it is possible to travel at FTL speeds. This is possible because a bubble of space-time is created around an object where space-time is collapsed at one end of the bubble and expanded at the other end. This creates a curved wave in space-time. The bubble is pushed along by this wave at a speed faster than light, but inside the bubble, the object would be traveling at a speed slower than light speed and thus not require infinite energy to reach FTL. This theory though lacks a method of the creation of such a bubble as well as a way to leave the bubble once inside.Wormholes are another FTL travel method. A wormhole is basically a tunnel in space-time between two points. The two points in space may be further apart than the tunnel is long, so by traveling through the tunnel, you essentially take a shortcut between the two points. You do not actually travel at a speed faster than light, but you arrive at your destination sooner than you would if you would have traveled the real distance at the speed of light. The best description of this is an apple worm. The worm is on one side of the apple and needs to get to the other side. He can get there two ways, he could walk all the way around the outside of the apple, or he could tunnel through it. Walking around the apple is a lot further than burrowing through it.A new theory for FTL travel involves zero point fields. If you take a beaker, and vacuum out all matter, all energy and create an absolute vacuum, it will still be possible to pickup energy readings from inside that beaker. This is referred to as zero point energy. This is caused from energy particles suddenly popping into existence and suddenly disappearing at incredibility short intervals. During this time of short existence, the particles move, and on the odd occasion, these particles interact with matter that they might intersect. At any given moment, at any given location, these particles are popping into existence, moving a little, and poofing out of existence. The motion of these particles is very miniscule, but tends to be towards mass. One might speculate that the movement towards mass is caused by gravity, but the theory of zero point energy fields is that this movement and interaction with matter actually IS gravity. Each particle of energy exerts a very small amount of force as it passes through matter, but combined, this motion of the particles towards mass draws masses together. Likewise, this interaction of zero point energy with matter can explain inertia. As an example of inertia, picture a car parked in the rain. The rain drops are the zero point energy particles. The front of the car, sides, and back all are subject to the same density of rain. If you start to move the car, the rain density at the front of the car will increase while the rain density at the rear of the car will decrease. In the same way, an object at rest will have an equal amount of zero point energy particles around it. This holds the object in place. When the object starts to move, the zero point energy particles are denser in the direction of the movement and create resistance to the movement. At the rear of the object, there is a vacuum of zero point energy particles created that creates drag on the object. When the object is no longer accelerating, the zero point energy particles become balanced around the object again which holds the object into the same motion it is currently following. If the zero point energy fields could be blocked, inertia and gravitational effects could be negated or greatly decreased which would greatly reduce the amount of energy required to push an object to FTL speeds. The theory is that these fields could be blocked using electromagnetic forces. At this time, the closest example of this would be the levitation of objects (i.e. live frog) in a superconductor electromagnetic field.If we could travel at the speed of light, there are other factors we would have to consider as well, such as collisions. If your path was not absolutely clear of debris, then it would be nearly impossible to steer a ship around obstacles at light speed. By the time a computer could even detect an object in the movement path, a collision would have occurred. And traveling at or above the speed of light and colliding with an object, even a speck of dust, could be fatal because the force of the collision will be equal to the mass of the object times the combined speed of both objects. The speck of dust in relation to you, would carry nearly infinite amount of force on the collision.At this time, our technology does not allow for FTL speed travel. But if we are to survive the eventual destruction of this world, it will be required.