if you went the speed of light in space for one year how many years would go by on earth?

Answer 1

As Mez says, you can't travel at the speed of light and measure any passage of time at all. Clocks stand still at light speed.

Until recently, we did not know if neutrinos had rest mass or not. It was thought they might be massless and travel at the speed of light. However, observations conducted by neutrino observatories found that some solar neutrinos were switching between neutrino flavors during their flight from sol to the detectors. This showed they must therefore have an internal clock running (or their initial state would be frozen), confirming they have a (small) rest mass and therefore travel at sub-light speeds.

Answer 2

It depends on what kind of clock you're using.
The next time you're traveling in a car, consider this: the farther away you focus, the less the scenery changes. Look out your window at the ground directly below you and the scenery changes quickly.
If you traveled away at SoL (speed of light) for 6 months, turned around and traveled back at SoL, would the earth be only a year older?
Look at the stars. Most of that light emanated in the past, but we're seeing it now. There are points of light out there that have emanated from entities that no longer exist, The night sky exhibits the past, but in depth.
Some of the light originated days, weeks, and months ago, some of the light you see originated when dinosaurs roamed the earth, and some originated before the earth was formed: all visible right now.
But....no light is visible that hasn't originated yet.
Time as we know it is inherently relative. If the universe stopped in its tracks, time would cease. There would be no way to tell if time was passing: everything still, no movement whatsoever.
Our minds use time to put our perceptions in perspective. The screen you're looking at seems to be a certain distance away from your face.
The dissemination of light as it bounces off and emanates from the screen is measured by how long it takes to perceive.
Close your eyes, turn around, and try to picture a nearby wall. Using memory, you can guess about where it is, but you're not sure until it comes in contact with one of your senses. Walk into it and, voila!, there it is. By opening your eyes, your light analyzer activates.
Without time, space becomes opaque, it becomes solid.
Lost my train of thought... I believe there is a formula for your question, but I don't recall the particulars.

Answer 3

Current theory says that if you travel at the speed of light at all, time stands still, so, an infinite number of years would go by on earth.

Answer 4

if u figure that one out u'd get a nobel prize for physics or something.
some theories hold that u'd disintegrate before u reach light speed. some say u'd collapse into ur own black hole if u try
some say an infinity of time would pass on earth
other theories state that u'd go back in time
some theories state u'd get to another dimension, so no tellin what time it'd be
theres no definite answer to this question coz this is a topic which has the world's best brains baffled. all we have as yet are theories.

Answer 5

First things first, theoritically u can never travel with the speed of light as it will violate all the laws of mechanical frames. also your mass shall become infinite as per einstein's equation for moving mass, another condition impossible
But still hypothetically if u travel with such speed , no time shall pass on the earth.
Strange but true. Hope this helps you. All the best.

Answer 6

1 year, the speed of light is not a time. its a distance.

Answer 7

297452000km*60s*60min*24h*365days
It takes so many years that no one could count it out.

Answer 8

Infinite (also your mass will be infinte)