Thread: why is it not possible to go at the speed of light?

Originally Posted by guerilla

My question to that is, isn't everything weightless in space?

how does a spaceship increase in inertion mass?

Is it proven that the faster an object travels in SPACE the heavier it gets?

I want proof, not theories.

Mass and weight are two separate things.

As something begins moving faster it don't get heavier, it gets more massive.

Weight is only a measure of gravity's pull on a certain object in an area. Mass is a (universal?) constant.

Mass vs. Weight

Originally Posted by Elis D.

Mass and weight are two separate things.

As something begins moving faster it don't get heavier, it gets more massive.

Weight is only a measure of gravity's pull on a certain object in an area.

exactly as i was about to say.