The Big Bang, Cosmology part 1: Crash Course Astronomy #42
Thanks to observations of galaxy redshifts, we can tell that the universe is EXPANDING! Knowing that the universe is expanding and how quickly its expanding ...
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What is the nature of the Universe? How’s that for a question? For a long time we humans had no idea what was going on in the Universe. To help, we made up stories to either help us explain what we saw, or to make us feel better about what we didn’t understand. But then science came along, and we started to understand more. We could test our ideas, and as we got more confident in the process, our ideas grew. The field of cosmology was born, the study of the cosmos itself. And now, after centuries of speculation and just-so-stories, we’re starting to get a grasp on the biggest ideas there are. What is the nature of the Universe? Let’s find out. By the turn of the 20th century, scientists knew the Earth was old. Darwin’s Theory of Evolution strongly implied the Earth was at least ...
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What is the nature of the Universe? How’s that for a question? For a long time we humans had no idea what was going on in the Universe. To help, we made up stories to either help us explain what we saw, or to make us feel better about what we didn’t understand. But then science came along, and we started to understand more. We could test our ideas, and as we got more confident in the process, our ideas grew. The field of cosmology was born, the study of the cosmos itself. And now, after centuries of speculation and just-so-stories, we’re starting to get a grasp on the biggest ideas there are. What is the nature of the Universe? Let’s find out. By the turn of the 20th century, scientists knew the Earth was old. Darwin’s Theory of Evolution strongly implied the Earth was at least ...
