300 billlion years
It would take approximately 65 years to travel at the speed of light from Earth to Aldebaran, which is about 65 light-years away. However, currently, we do not have the technology to travel at the speed of light.
It takes about 1.28 seconds for light to travel from the moon to Earth. So if the moon were to travel at the speed of light, it would complete an orbit around the Earth in approximately 1.28 seconds.
Seeing as how we humans live on earth, I am not sure what you mean.
If light rays did not travel through space there would be no way for them to reach Earth.
It would take 100 Earth years for a signal to travel from a star located 100 light years away to reach Earth.
It would take 100 years for a signal to travel from Earth to a star located 100 light years away.
Well Earth is part of the Universe and one can travel round Earth by walking. To travel to parts of our own solar system one would need a space ship. As far as we know it would take more than a human lifetime to travel to the nearest star to the Sun.
Light travels at approximately 186,282 miles per second. The circumference of the Earth is about 24,901 miles. Therefore, it would take light approximately 0.133 seconds to travel all the way around the Earth.
If you were to travel at the speed of light for a year, no time would pass for you, but approximately one year would pass on Earth.
From where ? ? ? From the sun: 12min 40sec From the earth when Mars is closest: 4min 21sec From the earth when Mars is farthest: 20min 59sec
It would take about 22.5 minutes.
It takes light about 8 minutes and 20 seconds to travel from the Sun to Earth. Since the solar system spans a distance of about 4.24 light-years, it would take light approximately 4.24 years to travel from one end to the other.