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2. What Is the Big Bang? | NASA Space Place – NASA Science for Kids

   spaceplace.nasa.gov/big-bang/en

   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!

3. Universe | NASA Space Place – NASA Science for Kids

   spaceplace.nasa.gov/menu/space

   What Is the Big Bang? Why do we call it that? explore; Where Does Interstellar Space Begin? Interstellar space begins where the sun’s magnetic field stops affecting its surroundings. explore; What Is a Satellite Galaxy? What are they and what will become of them? explore; Build your own spacecraft! Become a NASA engineer! do; A Planet Without ...

4. What Is Dark Matter? | NASA Space Place – NASA Science for Kids

   spaceplace.nasa.gov/dark-matter/en

   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.

5. Big Bang | NASA Space Place – NASA Science for Kids

   spaceplace.nasa.gov/menu/solarsystem/big-bang

   NASA science games, articles and activities for kids

6. What Is the James Webb Space Telescope? - NASA Space Place

   spaceplace.nasa.gov/james-webb-space-telescope/en

   The James Webb Space Telescope is the largest, most powerful space telescope ever built. It will allow scientists to look at what our universe was like about 200 million years after the Big Bang. The telescope will be able to capture images of some of the first galaxies ever formed.

7. Big Bang | NASA Space Place – NASA Science for Kids

   spaceplace.nasa.gov/menu/kids/big-bang

   NASA science games, articles and activities for kids.

8. How Did the Solar System Form? - NASA Space Place

   spaceplace.nasa.gov/solar-system-formation/en

   Our story starts about 4.6 billion years ago, with a wispy cloud of stellar dust. This cloud was part of a bigger cloud called a nebula. At some point, the cloud collapsed—possibly because the shockwave of a nearby exploding star caused it to compress.

9. What Is a Galaxy? | NASA Space Place – NASA Science for Kids

   spaceplace.nasa.gov/galaxy/en

   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.

10. Earth | NASA Space Place – NASA Science for Kids

    spaceplace.nasa.gov/menu/earth

    A picture book about Earth's atmosphere and its importance to life on Earth. Links out. Articles, games and activities about our home planet.

11. What Is a Light-Year? | NASA Space Place – NASA Science for Kids

    spaceplace.nasa.gov/light-year/en

    For most space objects, we use light-years to describe their distance. A light-year is the distance light travels in one Earth year. One light-year is about 6 trillion miles (9 trillion km). That is a 6 with 12 zeros behind it!