# What happens if we travel with speed of light?

What happens if we travel with speed of light? If an object ever did reach the speed of light, its mass would become infinite. And as a result, the energy required to move the object would also become infinite: an impossibility.

How close to the speed of light can we currently travel? The most energetic particles ever made on Earth, which are protons at the Large Hadron Collider, can travel incredibly close to the speed of light in a vacuum: 299,792,455 meters-per-second, or 99.999999% the speed of light.

Is NASA working on light speed? NASA Engineer Says New Thruster Could Reach 99% Speed of Light.

Is light faster than darkness? Darkness travels at the speed of light. More accurately, darkness does not exist by itself as a unique physical entity, but is simply the absence of light. Any time you block out most of the light – for instance, by cupping your hands together – you get darkness.

## What happens if we travel with speed of light? – Additional Questions

### Will we ever be able to travel back in time?

As the late Stephen Hawking said in his book Black Holes and Baby Universes, “The best evidence we have that time travel [into the past] is not possible, and never will be, is that we have not been invaded by hordes of tourists from the future.”

### Is warp drive possible?

None of the physically conceivable warp drives can accelerate to speeds faster than light,” Bobrick says. That is because you would require matter capable of being ejected at speeds faster than light—but no known particles can travel that fast.

### What would happen if a needle hit Earth at the speed of light?

A needle is a physical mass and if it travels up to the speed of light, this mass can almost reach an infinite capacity, unleashing a destructive power of kinetic bombardment.

### How fast can we travel compared to the speed of light?

“There is no real practical limit to how fast we can travel, other than the speed of light,” says Bray. Light zips along at about a billion kilometres per hour.

### What is 1% the speed of light?

While 1% of anything doesn’t sound like much, with light, that’s still really fast – close to 7 million miles per hour! At 1% the speed of light, it would take a little over a second to get from Los Angeles to New York. This is more than 10,000 times faster than a commercial jet.

### Will we ever leave our galaxy?

Four billion years from now, our galaxy, the Milky Way, will collide with our large spiraled neighbor, Andromeda. The galaxies as we know them will not survive. In fact, our solar system is going to outlive our galaxy.

### What is the oldest thing in the universe?

Astronomers have confirmed the discovery of one the oldest and most distant objects ever known in the universe — a star-forming galaxy 12.8 billion light-years away that started forming within a billion years of the Big Bang that kickstarted everything.

### What is the slowest thing in the universe?

The half-life of xenon-124, one isotope of xenon, was recently measured to be a trillion times longer than the age of the universe! This is the slowest process ever measured by direct observation.

### Is anything faster than light?

Albert Einstein’s special theory of relativity famously dictates that no known object can travel faster than the speed of light in vacuum, which is 299,792 km/s. This speed limit makes it unlikely that humans will ever be able to send spacecraft to explore beyond our local area of the Milky Way.

### Are lasers faster than light?

One of the most sacred laws of physics is that nothing can travel faster than the speed of light in vacuum. But this speed limit has been smashed in a recent experiment in which a laser pulse travels at more than 300 times the speed of light (L J Wang et al. 2000 Nature 406 277).

### What is light made of?

Light is made of particles called photons, bundles of the electromagnetic field that carry a specific amount of energy. With sufficiently sensitive experiments, you can count photons or even perform measurements on a single one.

### Does light have mass?

In addition to being a particle, light is also a wave. This allows it to carry momentum, and therefore energy, without having mass.

### Does light bend?

It’s well known that light bends. When light rays pass from air into water, for instance, they take a sharp turn; that’s why a stick dipped in a pond appears to tilt toward the surface. Out in space, light rays passing near very massive objects such as stars are seen to travel in curves.

### Can light push objects?

Light carries momentum that can push on an object, but it can also move an object through thermal forces.

### Is light an atom?

Light is not made out of atoms or anything like them. Electromagnetic waves are themselves a basic ingredient of our world. It’s the light itself which enters our eyes. It is absorbed by special molecules which change their chemical configuration as a result of that absorbed energy.