can we ever travel faster than the speed of light?
368576
The fact is we'll never be able to travel beyond the speed of light, at least based on our current understanding of established physics. ... If a proton did achieve that speed, it would need infinite energy to go any faster, and we don't have an infinite supply of energy.
726090
Nothing can travel faster than the speed of light. But if it could , the conventional wisdom goes, it would travel back in time. ... We used only the velocity addition formula from special relativity, as the other ones (time dilation, length contraction, etc.) all gave us goofy, imaginary answers.
540817
The theory of special relativity showed that particles of light, photons, travel through a vacuum at a constant pace of 670,616,629 miles per hour — a speed that's immensely difficult to achieve and impossible to surpass in that environment.
432885
The speed of light in a vacuum is 186,282 miles per second (299,792 kilometers per second), and in theory nothing can travel faster than light. In miles per hour, light speed is, well, a lot: about 670,616,629 mph. If you could travel at the speed of light, you could go around the Earth 7.5 times in one second.
592860
There is yet another possible way in which faster-than-light travel is technically possible: rifts in space-time itself that allow a voyager to escape the rules of normal travel.
1448472
So the faster something travels, the more massive it gets, and the more time slows – until you finally reach the speed of light, at which point time stops altogether. And if time stops, well then, so does speed. And so nothing can travel faster than the speed of light.
1280780
Can information travel faster than light? ... One of the tenets of Einstein's Theory of Special Relativity is that nothing can travel faster than the speed of light in a vacuum. Light speed is considered the universal speed limit of everything, and this is widely accepted by the scientific community.
415658
For one thing, while nothing has ever been observed travelling faster than light, that does not mean it is not theoretically possible to break this speed limit in very special circumstances. Take, for instance, the expansion of the Universe itself.
1140847
Time on Earth moves FASTER than in space: Planet's orbit around the sun and galaxy gives us one second less per WEEK. One of the consequences of living in our universe - where space and time are linked - is that as you travel faster, time can appear to speed up.
1122922
In principle, shadows can move faster than the speed of light. ... If the shadow is large enough, it could move across the surface faster than light. This is an illusion that darkness travels faster than the speed of light, and it is still agreed that no physical object can travel faster — since darkness has no mass.
450647
Tachyons. In special relativity, it is impossible to accelerate an object to the speed of light, or for a massive object to move at the speed of light. However, it might be possible for an object to exist which always moves faster than light.
44472
Science: Can photons travel 'faster than light'? LIGHT cannot travel faster than it does in a vacuum. This, at any rate, is what Einstein postulated in 1905. ... The proposed effect, however, is very small indeed: the photons can exceed Einstein's limit by only one part in 1036.
77865
Generally speaking, we say that light travels in waves, and all electromagnetic radiation travels at the same speed which is about 3.0 * 108 meters per second through a vacuum. We call this the "speed of light"; nothing can move faster than the speed of light.
1293066
Hence simply, thoughts are much faster than light because they are not physical. For example, you can travel to a place much faster in your thoughts than light. ... Even if you consider thought as a physical entity and even if it could travel greater than speed of light, it won't break the Special Theory of Relativity.
1357961
In such a scenario, you can travel way faster than light without being even near the relativistic limit c and experiencing no considerable time dilation. This will enable you to see in the 'past'.
1030331
The closer an object gets to the speed of light, that object actually experiences time at a significantly slower rate. If the Enterprise were traveling safely at close to the speed of light to the center of our galaxy from Earth, it would take 25,000 years of Earth time.
516655
Because light travels at 45 degrees, anything traveling slower than light from this t=0 event is closer to the time axis than the light rays, and anything faster than light is further away from the time axis. ... Again, this is what a FTL and slower-than-light set of communications would appear like in a spacetime diagram.