Jan 20, 2026 · 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 …

Jan 20, 2026 · NASA science games, articles and activities for kids

Sep 25, 2025 · Big Bang All About the Sun explore Make Stretchy Universe Slime! do What Is the Big Bang? explore

Jan 20, 2026 · ¿Qué es el Big Bang? La respuesta corta: El Big Bang es cómo los astrónomos explican la forma en que comenzó el universo. Es la idea de que el universo comenzó como un solo punto, luego …

Jan 20, 2026 · 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 …

Jan 20, 2026 · It is the "noise" left from shortly after the Big Bang that began the universe billions of years ago. The different colors represent very tiny differences in energy that eventually resulted in …

Jan 20, 2026 · Credit: NASA What causes gravitational waves? The most powerful gravitational waves are created when objects move at very high speeds. Some examples of events that could cause a …

Jan 20, 2026 · In this game, you’ll use big antennas to communicate with NASA’s spacecraft! Play DSN Uplink-Downlink!

Sep 25, 2025 · Big What Is the Big Bang? explore How Does Our Sun Compare With... explore What Is a Planet? explore Glossary explore Hear tiny sounds with a Super... do What Causes the Seasons? …

Jan 20, 2026 · Here are some fun facts about the James Webb Space Telescope: It is very, very big. The Webb telescope is as tall as a 3-story building and as long as a tennis court! It is so big that it has to …