It can travel through a vacuum at approximately 300,000,000 m/s. This was determined by the fact that light from the sun passes through 93,000,000 miles of empty space on its way to the Earth. This was first determined by the Danish astronomer Roemer during his study of motion of satellites of Jupiter. He calculated the speed of light by determining that the light from Jupiter’s satellites takes about 1,000 seconds to travel 186,000,000 miles across the Earth’s orbit. Then he divided 186,000,000 miles by 1,000 seconds which gave him 186,000 miles per second as speed of light in a vacuum. This speed plays an important part in theories of matter because it is the greatest speed

any form of matter or energy can have. Speed of light in different mediums varies, for example, in air it is a little slower, but it is considerably slower in other transparent substances such as water.

At the present time, most scientists believe that the correct answer should be “no”. Some say, consequent to Einstein’s theory of relativity that states that nothing with mass -- like people or things -- can ever go faster than light, that it would be impossible for a person to reach such speeds because anything that has mass requires an amount of energy to accelerate and to accelerate at such a high speed would require an infinite amount of energy and even then, the person would go to 99% the speed of light, but will never be 100%. In fact, if mass was able to come to those limits it would probably vanish in space and for a person, reflection in a mirror would completely disappear and all the neurons in the brain would not be able to leap their gaps.

Some topics in this essay:
Albert Michelson, Washington Using, Isaac Newton, Galilean Space, , speed light, octagonal mirror, faster light, light barrier, rotating octagonal mirror, exceed light barrier, “no mass bubble”, space �, travel faster, 186000000 miles, 186000 miles, mass bubble”, own limits,