0
Anything with zero rest-mass. This means photons (quanta of light), gluons (the mediators of the strong nuclear force) and gravitons (the mediators of gravity, if they exist). All other particles have non-zero rest mass and can only travel at sub-light speeds.
There has been some mention in the news of neutrinos exceeding light speed. However, those results are still being debated.
What else can I help you with?
Can a person travel at a speed of light?
No. Nothing with mass can travel at the speed of light.
What will happen if a man passes a electrmagnetic waves in speed of light?
A man can't travel at the speed of light.A man can't travel at the speed of light.A man can't travel at the speed of light.A man can't travel at the speed of light.
How do you travel in the speed of light?
You don't. The only objects that can travel at the speed of light are those that ONLY travel at that speed, like photons or gravitons.
What can travel at speed of light?
Any massless "thing" like a photon and MAYBE a neutrino. NOTHING with mass can travel at the speed of light. Photons travel at the speed of light. The entire electromagnetic spectrum travels at the speed of light.
Do neutrinos travel at the speed of light, or do they move at a different velocity?
Neutrinos do not travel at the speed of light, but they do move very close to the speed of light.
Is it possible to travel at the speed of light in water?
No, it is not possible to travel at the speed of light in water. Light travels at a slower speed in water compared to its speed in a vacuum, which is about 299,792 kilometers per second. The speed of light in water is approximately 225,000 kilometers per second.
What can travel twice the speed of light?
Nothing physical is believed to be able to travel twice the speed of light.
Does red light travel faster than blue light?
No. All colors travel at the same speed. It is called "the speed of light".
How do you think it would be possible to travel at the speed of light?
The only way to travel at the speed of light is to not have any mass.
How To Travel At The Speed Of Light?
You can't travel at the speed of light. It might be possible, in theory, to approach it, but not quite to reach it.
X-rays travel in vacuum at a higher speed than the visible light?
Yes, X-rays travel at the speed of light in a vacuum, which is higher than the speed of visible light. This is because the speed of light in a medium is inversely proportional to the refractive index of the medium, and X-rays have a shorter wavelength than visible light, allowing them to travel at a higher speed.
Do radio waves travel at the speed of light at the speed of sound or something in between?
speed of light
