What Is a Laser? | NASA Space Place – NASA Science for Kids
Sep 25, 2025 · Lasers produce a narrow beam of light in which all of the light waves have very similar wavelengths. The laser’s light waves travel together with their peaks all lined up, or in …
What's in the Atmosphere? | NASA Climate Kids
Scroll up to see what's in each level of Earth's atmosphere!
How Many Solar Systems Are in Our Galaxy? - NASA Space Place
Sep 25, 2025 · Our solar system is just one specific planetary system—a star with planets orbiting around it. Our planetary system is the only one officially called “solar system,” but astronomers …
What Is the Big Bang? | NASA Space Place – NASA Science for Kids
Sep 25, 2025 · What's This Big Bang All About? In 1927, an astronomer named Georges Lemaître had a big idea. He said that a very long time ago, the universe started as just a …
What Is a Light-Year? | NASA Space Place – NASA Science for Kids
Sep 25, 2025 · A light-year is the distance light travels in one Earth year. Learn about how we use light-years to measure the distance of objects in space.
How Do Hurricanes Form? | NASA Space Place – NASA Science for …
Sep 25, 2025 · Hurricanes are the most violent storms on Earth. People call these storms by other names, such as typhoons or cyclones, depending on where they occur. The scientific term for …
All About Neptune | NASA Space Place – NASA Science for Kids
Sep 25, 2025 · Structure and Surface Neptune is encircled by six rings. Neptune, like Uranus, is an ice giant. It’s similar to a gas giant. It is made of a thick soup of water, ammonia, and …
Stratosphere | NASA Space Place – NASA Science for Kids
Sep 25, 2025 · The layer made of layers Above the troposphere and below the mesosphere, we have the stratosphere. “Strat” means layer. This layer of our atmosphere has its own set of …
Thermosphere | NASA Space Place – NASA Science for Kids
Sep 25, 2025 · The heat that won't keep you warm The thermosphere lies between the exosphere and the mesosphere. “Thermo” means heat, and the temperature in this layer can reach up to …
What Is Science? | NASA Space Place – NASA Science for Kids
Sep 25, 2025 · Science consists of observing the world by watching, listening, observing, and recording. Science is curiosity in thoughtful action about the world and how it behaves.