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

    Sep 17, 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!

  2. spaceplace.nasa.gov › dark-matter › enWhat Is Dark Matter? | NASA Space Place – NASA Science for Kids

    Sep 17, 2024 · But first, let us tell you a story about our universe. For the first 150 million years after the Big Bang, there were no galaxies or stars or planets. The universe was just a soup of tiny, tiny things called particles. Gravity, the force that pulls you to the Earth and attracts all matter together, began to pull these particles toward each other.

  3. spaceplace.nasa.gov › menu › spaceUniverse | NASA Space Place – NASA Science for Kids

    Sep 17, 2024 · Galaxies, nebulae, and supernova remnants to view or print. Gravity is the force by which a planet or other body draws objects toward its center. Catch as many astrophysical objects and phenomena as possible in this game! Paper models of the great space observatories and explorers of the universe.

  4. spaceplace.nasa.gov › hubble › enThe Amazing Hubble Telescope - NASA Space Place

    Sep 17, 2024 · This led to the “Big Bang” theory, which says that the universe began with an intense burst of energy and has been expanding ever since. Edwin Hubble seated at the 100-inch reflecting telescope at the Mount Wilson Observatory in California.

  5. spaceplace.nasa.gov › menu › kidsBig Bang | NASA Space Place – NASA Science for Kids

    Sep 17, 2024 · Big Bang. All About the Sun. The light of daytime comes from our closest star: the Sun. Learn more about it! explore. Make Stretchy Universe Slime! Make the universe stretch and expand! do.

  6. spaceplace.nasa.gov › solar-system-formation › enHow Did the Solar System Form? - NASA Space Place

    Sep 13, 2024 · Big objects collided with bigger objects, forming still bigger objects. Finally some of these objects became big enough to be spheres—these spheres became planets and dwarf planets. Rocky planets, like Earth, formed near the Sun, because icy and gaseous material couldn’t survive close to all that heat.

  7. spaceplace.nasa.gov › menu › earthEarth | NASA Space Place – NASA Science for Kids

    5 days ago · All About Earth. Since we live here, you might think we know all there is to know about Earth. Not at all, actually! We have a lot we can learn about our home planet. Learn more about Earth and all the planets in our solar system.

  8. spaceplace.nasa.gov › galaxyWhat Is a Galaxy? | NASA Space Place – NASA Science for Kids

    Sep 17, 2024 · A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems. A galaxy is held together by gravity. Our galaxy, the Milky Way, also has a supermassive black hole in the middle. When you look up at stars in the night sky, you’re seeing other stars in the Milky Way.

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

    Sep 17, 2024 · Make Stretchy Universe Slime! Make the universe stretch and expand! do; What Is the Big Bang? Why do we call it that? explore

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

    Sep 17, 2024 · Contact NASA Space Place Last Updated: September 17th, 2024. NASA science games, articles and activities for kids.