1.

Light can travel in the absence of a medium. That means light from the star( eg. Sun) can travel infinitely in the absence of obstructionss in its path. Then why is he space not illuminated? Light from all the stars is capable of reaching the boundaries of the universe, if any. Also then we may use powerful laser light to determine the extent of he universe by projecting it into the space and calculating the distance it covered by using the time it consumed

Answer» Light can travel in the absence of a medium. That means light from the star( eg. Sun) can travel infinitely in the absence of obstructionss in its path. Then why is he space not illuminated? Light from all the stars is capable of reaching the boundaries of the universe, if any. Also then we may use powerful laser light to determine the extent of he universe by projecting it into the space and calculating the distance it covered by using the time it consumed


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