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One is when we talk about the Big Bang, we're not talking about the matter, just the mass or just the matter in the universe being in one point. We're talking about actual space expanding. So we're not just talking about something inside of space, like the physical mass, the physical matter expanding.
- WATCH: The Big Bang (video) | Khan Academy
WATCH: The Big Bang. The Big Bang Theory explores the...
- WATCH: Unit 2 Overview - The Big Bang (video) | Khan Academy
As you begin Unit 2 of the Big History Project course, this...
- WATCH: The Big Bang (video) | Khan Academy
Oct 26, 2023 · NASA Spotlite: The Big Bang Oct 2023 HD This animation begins with a pinpoint of light as the Big Bang, and continues to show the formation of the first stars and galaxies.
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Aug 26, 2022 · What is the Big Bang Theory? Do you want to be in the first second of our universe's life and witness how it's created? Watch this video and grasp the basic concept of the Big Bang in...
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- Big Bang Academy Kids
May 6, 2024 · What Is the Big Bang? The Short Answer: The big bang is how astronomers explain the way the universe began. It is the idea that the universe began as just a single point, then expanded and stretched to grow as large as it is right now—and it is still stretching!
Big-bang model, widely held theory of the evolution of the universe. Its essential feature is the emergence of the universe from a state of extremely high temperature and density—the so-called big bang that occurred 13.8 billion years ago. Learn more about the big-bang model in this article.