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      • Between 10 and 15 billion years ago, scientists believe, the universe began suddenly in an event called the big bang. Under conditions of extreme heat, all the matter and energy that make up the universe spread out to create space. Scientists who study the universe, called astronomers, have not proved that the big bang happened.
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  2. Learn about the big bang theory, which explains how the universe began and expanded from a hot and dense state. Find out the evidence, the future, and the challenges of this scientific idea.

  3. Jun 13, 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!

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  4. Learn what the Big Bang was, how it happened, and what it means for the universe. Find out the time line, the theory, the experiments, and the fun facts about the Big Bang.

  5. www.factsjustforkids.com › space-facts › big-bangBig Bang Facts for Kids

    Learn about the Big Bang theory, the prevailing scientific explanation of the origin and evolution of our universe. Find out who proposed, coined and challenged the theory, and explore alternative solutions and resources.

  6. Jun 8, 2024 · The Big Bang is a scientific theory about how the universe started, and then made the stars and galaxies we see today. The Big Bang is the name that scientists use for the most common theory of the universe, from the very early stages to the present day.

  7. What is space? The Universe. Black Holes. The mystery of the dark Universe. Cosmic distances. Most astronomers believe the Universe began in a Big Bang about 14 billion years ago. At that time, the entire Universe was inside a bubble that was thousands of times smaller than a pinhead. It was hotter and denser than anything we can imagine.

  8. How was the universe created? What order did everything happen in? Keep reading to find the Big Bang explained for kids, along with tons of fun facts.

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