How many times can a belt of light pass around the universe?

Question

Or just light. Not a belt of light in particular. By the way, it would really be appreciated if you post an answer not a 'look on google' or 'i don't know' that would be really helpful.

Answer 1

I'm not really sure what a " belt " of light is but light, in general, doesn't really pass around the universe.  Light radiates in all directions from it's source or point of origin and can be bent by a process of gravitational lensing (cluster of galaxies combined gravitational effect on light) or passing near a star or other stellar object (neutron star, white dwarf, black hole, ect.).  Light travels at 186,000 miles per second.  Light comes in a variety of wavelengths starting with high energy particles ranging from gamma rays (high energy photons emited as a direct result of nuclear fusion), x-rays (released around the accretion disc of black holes), ultraviolet radiation (high energy particles that can burn your skin), visible light (most light from the sun's photosphere is released as visible light and is the only light humans can see) infrared (given off by the slightest bit of heat such as body heat), microwave (causes water molecules to spin rapidly creating friction and cooking your food), and radiowaves (released from quasars, pulsars and radio stations).  Galaxies and stars heading away from earth or towards earth emit either a red shift or a blue shift.  A red shift means that all light from a star is shifted towards the red, or longer wavelength side of the spectrum<---think of a rainbow.  As the star heads away from us the wavelengths of light get stretched out.  And vise versa with blue shifts and stars or galaxies heading towards us.  Hope this helps because it is pretty much everything I know about light.  

Answer 2

If the universe is infinitely large, then obviously never.

If the universe is finite but unbounded, then geometrically, it might seem like a light ray could circumnavigate it and return to where it started from, but in reality that cannot happen because the universe is expanding too quickly. The "great circle" route around the universe increases in length by more than 300,000 kilometers per second, so the light ray cannot keep up with it. And since the rate of acceleration is increasing, there is no time in the future when this will be possible either.

Answer 3

I don't think it can, the universe is ever expanding.

Answer 4

Its hard to say. We have no idea how big the universe is, and how fast it is expanding. We couldn't launch it from the end of the universe because it is constantly getting farther away because the universe is constantly expanding. So sorry, but we really don't know. The best answer I can give is that it probably couldn't make it to the end because the universe is probably expanding at or above the speed of light. Sorry.

Answer 5

It's not possible for light to pass 'around' the Universe. The Universe is expanding in every possible direction at the speed of light, so any beam emitted can never catch up. The oldest light began 300,000 years after the Big Bang, when the Universe had cooled enough to allow photons to move freely. This light has stretched and red-shifted to the point where today it's no longer visible to our eyes. Instead, it's known as the Cosmic Microwave Background Radiation.

Answer 6

look on google

Answer 7

it will nevet stop passing through

untill it is ubsorbed by a matter

and as far as we know the universe doesnt stop

its not like a big  sphere

Answer 8

im not sure what a belt of light is. sorry, but i think that light goes forever to where you shine it unless it hits something