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If someone travels 5 light years away from earth will they be able to see 5 years into earth's past?
Wiki User
∙ 14y ago
In a way, yes. But that doesn't give them any strange powers or ability when you think about it.
If a person is 5 light years away from earth, and something really special happens on earth today,
he doesn't know about it until 5 years from today. By the time he finds out about it, the news is
5 years old. So in that sense, yes, everything he sees from earth comes from 5 years in the past.
If this is hard to focus on, you don't need to worry about it, because it's not going to happen
any time soon. Using any technology that exists today, or is even on the drawing board today,
it's going to take at least 30 years for anybody to travel 5 light years away from earth, and that
distance is still 120 million times farther than any astronaut has ever been from earth so far.
Wiki User
∙ 14y ago
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Trivia about light?
Light travels at the speed of 186,000 miles per second. A light year is the distance light travels in one year. It takes 8 minutes for light to travel from the sun to the earth.
Where does the light in a light year come from?
It gets it name because it is the distance that light travels in one Earth year.
How long does it take a star's light that is 7 light years away from Earth to reach Earth?
It's exactly 7 light years away.One light year is the distance that light travels through space in one year.7 of those is a distance of something like 41,150,289,900,000 miles.
The star alpha centaur is about 4.3 light years from earth how far is the distance in miles if a lightyear is the distance light beam that travels once 1 year And a beam of light travels 186000?
I would say 4.3 x 186000
How do the tilt of earths axis and earths movements around the sun cause season?
Seasons are caused as the Earth, tilted on it’s axis, travels in a loop around the sun each year. For example, summer happens in the hemisphere tilted towards the sun, winter happens in the hemisphere tilted away from the sun. The poles stay cool because they are never in a direct path of sun light.(those are just examples they’re not really part of the answer.)
Does light travels slowest through space?
As the medium through which light propagates in space is closes to a vacuum, light propagates very well in space. However, it travels at the same speed as it would on earth, as light travels at 299,792,458m/s in a vacuum, regardless of where that vacuum is located. the light travels in same speed whether it travels in space or earth.
How can you know that light travels through a vacuum?
light travels from sun to earth through vaccum, so its easily understood
What is ligthyear?
A light year is the distance that light travels in one Earth year.
How does the moon light the earth at night?
The moon travels in front of the sun out in space so it appears the moon lights up bt really its still the sun
What is a bright streak of light in the sky caused by the entry into earths atmosphere of a meteroroid?
It's simply dust and ice particles being heated - by friction, as the meteorite travels through the Earth's atmosphere.
Earth travels around the sun in light years?
how many light years the earth travels around the sunNo. The Earth travels around the Sun in a measurement of time called a year, which is one revolution or trip around the sun: approximately 584,020,178 miles.A light year is a measurement of distance that light travels in one year, which is approximately 5.88 Trillion (5,880,000,000,000) miles!
Why can you see stars?
Stars emit light that travels to the Earth.
What is the a proximate time that light travels from the sun to the earth?
8m20s
What is the fasted thing on Earth?
light, it travels at a unbelievable speed.
Trivia about light?
Light travels at the speed of 186,000 miles per second. A light year is the distance light travels in one year. It takes 8 minutes for light to travel from the sun to the earth.
How fas does light travel?
Light in its fastest state in a vacuum only can travel at 3.0*10^8km/s but as it enters the earth's atmosphere, the atmosphere is full of dust particles and layers of gases which can effect the speed of light slightly, in the earths atmosphere light travels at 2.89*10^8 km/s .
What did energey from the sun travel to Earth as?
Energy from the sun to Earth travels as electromagnetic energy, or light energy.
