![]() The laws of space and time have been there all along, but until we developed a more powerful way of seeing and understanding, we never saw them. ![]() ![]() In the beginning of the episode, Tyson explains to his audience that both the age and size of the cosmos are written in light. But how is light made possible? What are the forces that allow light from our Sun, over 92 million miles away, to reach Earth? In this episode of Cosmos, Neil deGrasse Tyson answers all these questions, and more. Without it, mankind would be left completely helpless. That by which most everything is made possible.
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