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  2. spaceplace.nasa.gov › big-bang › enWhat Is the Big Bang? | NASA Space Place – NASA Science for Kids

    Jul 9, 2024 · 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!

    • Dark Matter

      For the first 150 million years after the Big Bang, there...

    • Space

      What Is the Big Bang? Why do we call it that? explore; Where...

    • Earth

      A tsunami is a large wave caused by movements in Earth''s...

  3. www.britannica.com › biography › Georges-LemaitreGeorges Lemaître | Big Bang Theory, Cosmology & Physics

    Jul 13, 2024 · Georges Lemaître was a Belgian astronomer and cosmologist who formulated the modern big-bang theory, which holds that the universe began in a cataclysmic explosion of a small, primeval “super-atom.”

  4. www.sciencedaily.com › releases › 2013/09/130912131753Darwin's dilemma resolved: Evolution's 'big bang' explained by...

    5 days ago · Darwin's dilemma resolved: Evolution's 'big bang' explained by five times faster rates of evolution. Date: September 12, 2013. Source: University of Adelaide. Summary: Biologists have...

  5. en.wikipedia.org › wiki › UniverseUniverse - Wikipedia

    2 days ago · The prevailing model for the evolution of the universe is the Big Bang theory. The Big Bang model states that the earliest state of the universe was an extremely hot and dense one, and

  6. www.youtube.com › watchThe Universe and Our Solar System: From the Big Bang to ... -...

    Jul 19, 2024 · In this video, we explore the fascinating story of the universe's creation, the formation of galaxies, and the captivating details of our solar system. ...more. Welcome to an incredible...

  7. www.britannica.com › science › cosmic-microwave-backgroundCosmic microwave background | Electromagnetic Radiation & Big...

    Jul 16, 2024 · cosmic microwave background (CMB), electromagnetic radiation filling the universe that is a residual effect of the big bang 13.8 billion years ago. Because the expanding universe has cooled since this primordial explosion, the background radiation is in the microwave region of the electromagnetic spectrum.

  8. spaceplace.nasa.gov › menu › big-bangBig Bang | NASA Space Place – NASA Science for Kids

    Jul 9, 2024 · What Is the Big Bang? explore. Games. Crafts. Activities. Videos. Glossary. Mystery. NASA science games, articles and activities for kids.