User:Ultimaximus

lights energy: as we all know that light is photons.they collide with each other in the star like our sun and attain a velocity by which they can travel in such a long period of time around the cosmos.as albert einstein's formulae E=Mc2 IF WE PUT PHOTONS INTO THIS EQUATION we get that photons have no energy they travel the universe with the velocity attained in the star so some part of the universe must be hidden from our eyes.at some stage there velocity should end.lke in the blackhole they have no energy by which they can escape it.