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 phase.

Sep 25, 2025 · play Relay: A Laser-Based Space... Learn about laser-based space communications in this game! play Color Your Universe: Find the... Can you find all the NASA and space-themed hidden …

Sep 25, 2025 · They used a very sensitive instrument called LIGO (Laser Interferometer Gravitational-Wave Observatory). These first gravitational waves happened when two black holes crashed into …

Sep 25, 2025 · Light Why Is the Sky Blue? explore Glossary for "Sign Here!" words What Is a Laser? explore The Space Place Experiment Center do How Do Telescopes Work? Printed Product …

Sep 25, 2025 · NASA’s award-winning Space Place website engages upper-elementary-aged children in space and Earth science through interactive games, hands-on activities, fun articles and short …

Sep 25, 2025 · Explore questions: How exactly does GPS work? Where do satellites go when they die? What is a laser? How do we talk to faraway spacecraft?

Sep 25, 2025 · The light of daytime comes from our closest star: the Sun. Learn more about it! explore Why Do We Care About Water on Mars? Where there are signs of water, there might also be signs …

Sep 25, 2025 · explore What Is a Light-Year? 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. explore What Is an …

Sep 25, 2025 · Read on to learn more. explore What Is a Laser? explore What Is the Big Bang? explore What Are the Moon’s Phases? explore What Is an Aurora? explore What Is an Orbit? An orbit is a …

NASA science games, articles and activities for kids