0
Almost all light in space is produced through nuclear fusion within stars. The light released through fusion is able to travel through the vacuum of space because it is part of the electromagnetic spectrum, which doesn't require a medium in which to travel unlike mechanical waves such as sound.
Wiki User
∙ 9y ago
Wiki User
∙ 11y agoThe term "how" is not really appropriate. It is a simple fact of nature that light travels through a vacuum at the speed of light. Empty space is vacuum.
Light does not require a material medium to propagate. (In a material medium, light slows to a speed of less than the vacuum speed and can be absorbed.)
The light from a star goes off in all directions and some very tiny part of that light gets to our planet and an even tinier part gets to our eye so we can see it.
If you want a physics answer, then light is an electromagnetic wave and electromagnetic waves in a vacuum can only exist if they are moving at the speed of light. Maxwell's equations described this in the late 19th century.
Alternatively, one can say, it is an intrinsic part of the nature of the space-time continuum that light travels at the speed of light. These are fundamentally intertwined in the structure of the universe in which we live. There is no "how" to be explained.
Wiki User
∙ 15y agoMost solar energy is carried by electromagnetic radiation. For example, light is electromagnetic radiation. It is simply a property of electromagnetic radiation that it can travel thru space.
Wiki User
∙ 7y agoIt slows as the medium changes from a near-vacuum to the earth's atmosphere.
Add your answer:
Earn +20 pts
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.
What wave can travel through space where there is no matter?
A light wave can travel through space. Otherwise, how would sunlight reach the Earth? Also, light does have wave-like structures, and it is made up of particles called photons.
Why do light waves require a medium in which to travel?
Light waves do not require a medium through which to travel. They will travel (propagate) perfectly well in a vacuum. Otherwise, light would not pass through the vacuum of space. It would be very dark here on earth as the light from the sun, moon and stars could not reach Earth through the vacuum of space.
Which process does starlight travel through space?
First of all, a light year is not a measure of time. It is a measure of distance. A light year is the distance light travels in a year. Second, it depends on the distance of the star. The closes star to us is the sun. Light from it takes 8 minutes to reach Earth. The next nearest is Proxima Centauri, from whigh light takes about 4 years to reach us. The stars we see at night are a few hundred light years from us. However, the vast majority of stars in the universe are to far away to be visible to the naked eye. The most distant stars are billions of light years away.
What would describe a wave?
A wave is a disturbance that propagates through space and time, usually with transference of energy
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.
Does light travel through space?
Of course it travels.Then how do you expect light to reach the earth from he sun!
What do light rays need to travel through space?
If light rays did not travel through space there would be no way for them to reach Earth.
Can light travel through space?
Light can travel through space. All the light that we get on the earth's surface; usually travels from the sun through space before it can reach here.
Why is sunlight more dangerous in space than on earth?
Sunlight is more dangerous in outer space than on Earth because there is no matter in space, unlike on Earth, so sunlight just passes through the emptiness of space and shines in all directions. When light passes through matter, it takes longer for the light to pass through it to reach something. In space, it only takes 8 minutes for sunlight to reach Earth's surface. The speed of light also depends on what type of matter the light is going through.the sun is more hotter in space than the earth
Why is sunlight more dangerous in outer space than on earth?
Sunlight is more dangerous in outer space than on Earth because there is no matter in space, unlike on Earth, so sunlight just passes through the emptiness of space and shines in all directions. When light passes through matter, it takes longer for the light to pass through it to reach something. In space, it only takes 8 minutes for sunlight to reach Earth's surface. The speed of light also depends on what type of matter the light is going through.the sun is more hotter in space than the earth
What miles per second that the sunlight travels and how many minutes to reach the earth?
Light travels 186,282.4 miles per second in the vacuum of space. At that speed, it takes the light from the sun about 8 minutes and 18 seconds to reach Earth.
How fast is the speed of gravity?
Gravity does not exactly have a speed, but it does cause an acceleration (on Earth) of 9.8 meters per second per second. It is also believed that gravity propagates through space at the speed of light (which is 300,000 kilometers per second).
How fast would a burst of light reach the earth?
Light travels through space at 299,792,458 meters per second ... cleverly labeled the "speed of light" ... regardless of where it originates or what direction it takes.
What wave can travel through space where there is no matter?
A light wave can travel through space. Otherwise, how would sunlight reach the Earth? Also, light does have wave-like structures, and it is made up of particles called photons.
How does the energy from the sun reach the earth?
Waves of heat and light, called radiation, travel to earth.
Why do light waves require a medium in which to travel?
Light waves do not require a medium through which to travel. They will travel (propagate) perfectly well in a vacuum. Otherwise, light would not pass through the vacuum of space. It would be very dark here on earth as the light from the sun, moon and stars could not reach Earth through the vacuum of space.
