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Atmosphere Exosphere explore Thermosphere explore Ionosphere explore Mesosphere explore Stratosphere explore Troposphere explore Earth's Atmosphere explore All About Earth explore Glossary explore Why Is the Sky Blue? explore How Do Hurricanes Form? explore What Is El Niño? do Get your Gummy Greenhouse Gases! do Make a Cloud Mobile! do Why Are Planets Round? explore Why Is the Sky Blue? explore Why Does the Moon Have Craters? It's not because the Moon gets hit by meteors more often. explore Why is sixteen so sweet? What kind of math would creatures with 16 fingers invent? explore Why did it take so long to. Why does Saturn have rings? explore Why Does the Sun Burn Us? explore Why Do We Care About Water on Mars? Where. Answer your questions: What is the atmosphere? How much water is on Earth? Why is the sky blue? How far away is the Moon? Why Is the Sky Blue? explore explore See inside a closed box! do Make a topographic map! do explore How Do Hurricanes Form? explore What Is El Niño? Learn all about it then make a yummy dessert that maps the ocean's heat. do Get your Gummy Greenhouse Gases! Make pollutants from gumdrops, then gobble them up! do The Greenhouse Effect explore. The air molecules from Earth's atmosphere scatter out most of the blue light. The remaining light reflects onto the Moon's surface with a red glow, making the Moon appear red in the night sky. The name blood moon is also sometimes used for a Moon that appears reddish because of dust, smoke or haze in the sky. Why All About Earth explore Why Does the Moon Have Craters? explore Building a 3-D Map of Earth from. explore Why Is the Sky Blue? explore Gallery of NASA Earth Images explore Why Are Planets Round? explore Why does Saturn have rings? explore Why Do We Care About Water on Mars? explore Why is sixteen so sweet? explore Why did it take so long. Why Is the Sky Blue? The Short Answer: Sunlight reaches Earth's atmosphere and is scattered in all directions by all the gases and particles in the air. Blue light is scattered more than the other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time. En seguida nos damos cuenta de que el cielo es de color azul. ¿Pero alguna vez te has preguntado por qué? Muchas otras personas inteligentes, también se lo han preguntado… ¡Y les ha tomado mucho tiempo averiguar cómo y por qué! La luz del Sol se ve blanca, pero en realidad está compuesta por todos los colores del arcoíris. Cuando la luz blanca pasa por un prisma, queda separada en. The answer may surprise you. Earth's tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere. And when the South Pole tilts toward the Sun, it's winter in the Northern Hemisphere. 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 videos. With material in both English and Spanish and numerous resources for kids, parents and teachers, Space Place has something for everyone.

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