Every thing that is matter & light was created in Big-Bang. Nothing can travel faster than light.Then how it is possible that light from distant light sources (which was generated just after the Big Bang)is reaching to us now and earth (a chunk of matter) rerached earlier at this place.
2006-06-29 18:58:05 · 17 answers · asked by Devil-heart 2 in Science & Mathematics ➔ Astronomy & Space
The light from distant galaxies that we see now started on its journey through space long, long ago.... in a way its like looking back in time, trippy huh?
2006-06-29 19:18:27 · answer #1 · answered by eggman 7 · 0⤊ 0⤋
We are able to see about 13 billion light years out into the Universe through the Hubble Space Telescope. The Universe is though to be 14 billion years old. There fore we can see protogalaxies that were formed only 1 billion years after the big bang. Perhaps in a few 100 years our technology will be advanced enough to be able to see very close to when the big bang happened. And do not forget that when we are seeing a galaxy that is 13 billion light years away that we are seeing how that galaxy looked 13 billion years ago and not how the galaxy looks now,,,,if it even still exists.
2006-07-06 21:21:13 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Sound is the vibration of molecules and hence desires a media to commute by - with sound this media is the vibration of debris or molecules (which have mass) and hence won't be able to commute on the speed of light by using Einstein's idea of relativity. gentle has no mass and is an Electromagnetic wave - it does demonstrate some homes that debris have, yet it does no longer must have a medium to commute in - it really is shown by the very reality we see the daylight yet the gentle has to commute by area (that is a vacuum). NB... Steve C is faulty, gentle has no mass yet has potential and momentum in accordance to the the equation-: potential = Plank consistent x Frequency. i.e. the better the frequency the extra potential and momentum it consists of. gentle (or photons of the EM spectrum) are the distributors of the electromagnetic pressure which could paintings jointly with remember transferring potential between them. analyze the Photoelectric result and Compton scattering for further information. No-one knows for certain how gravity suits into the image, this is been postulated that gravity is carried by an entity said as the 'gravitron' yet as yet it has no longer been got here upon - that is likewise stated that inspite of consists of the gravitational pressure might want to commute on the speed of light. If someone discovers the 'gravitational service', there is little question there'll be a nobel prize for them, as this would finished what's known because the 'known sort' in physics.
2016-11-30 00:53:38 · answer #3 · answered by burley 3 · 0⤊ 0⤋
The Distant Stars light reaches us at the speed of light or 186,000 miles per second now multiply that by the number of seconds in a year and you have the distance of one light year!! Just think how far away those stars are if they are millions of light years away!! Our suns light takes 8 minutes to reach us or 480 Seconds X 186,000 Miles = the distance to the sun!!
2006-06-29 19:11:25 · answer #4 · answered by SCOTT M 1 · 0⤊ 0⤋
the light from the sun reaches the earth in 8 minutes
light from the other heavenly bodies can't reach the earth because it would be absorbed by the darkness and its distance
like that of the stars, their light does'nt reach the earth. if it does then night time will be with light
what we can only see at the stars is their glare
2006-07-07 19:45:57 · answer #5 · answered by Anonymous · 0⤊ 0⤋
I would say that if the light can reach us from all around, then it would seem that light from the universe reaching us here on earth, is traveling faster than the universe is expanding. And it would useful to find the center of it all, if only to say you have.
2006-06-29 19:11:48 · answer #6 · answered by Anonymous · 0⤊ 0⤋
It take hundreds of thousands of years for light from distant stars and galaxies to reach Earth.
2006-06-29 21:38:36 · answer #7 · answered by Eric X 5 · 0⤊ 0⤋
The light we are seeing is not the light that was emitted from the Big Bang...the light we see now is from the stars that are constantly giving off light
2006-06-29 19:02:10 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Yes! The light travels the fastest! but its velocity is limited to 300000 Km/s galaxies are far apart from us. and what we see of them at this time, dates back to years a go! for example Andromeda galaxy is about 2.9 million light years away which means what we see now is its structure 2.9 million years ago! could you imagine that?! we are watching a point of time in which primary kinds of human exist!
2006-06-29 19:11:47 · answer #9 · answered by Lenium 1 · 0⤊ 0⤋
The stars you see in the heavens at night appear to you as they did billions of year ago. It took that long for they light they generated to reach us.
2006-07-13 02:30:45 · answer #10 · answered by The Mick "7" 7 · 0⤊ 0⤋