Olber's Paradox

In Olber’s Paradox, Wilhelm Olber questions why the night sky is dark. He believed that the since the universe is static and uniform there is an equal distribution of stars. As a result every line of sight would come across a ray of a star and cause the sky to be bright at all times. Possibly, there could have been too much dust, which blocked the light from distant stars. However, this was falsified as dust would reflect the light and the probability of no rays hitting our eyes is very low. However, the correct answer to his question is that the universe is expanding. As the universe is spreading, the light from distant objects is shifted to longer and longer wavelengths (the Doppler Effect). This is because the object is getting further and further and thus the wavelength increases. When the object is moving at the speed of light, the waves it produces will never reach the eye as nothing can travel faster than light. As a result, when the earth is rotating around its axis, and at night when the sun is blocked out there is no other source of light in the universe, as that light cannot reach us. The universe is expanding, thus the Big Bang is proven.