Use Earth Now to explore NASA's satellites and the data they collect. Test your knowledge of NASA (National Aeronautics and Space Administration) and the U.S. space program with this quick 10 question quiz. A sensor aboard the NASA-NOAA Suomi National Polar-orbiting Partnership (NPP) satellite allows scientists to study Earth's atmosphere and surface during nighttime hours. That's a lot of water needed to sustain astronauts. Then see how much you’ve learned by taking the interactive quiz.

Science Editor: Holly Shaftel Every year, it expands and thickens during the fall and winter and grows smaller and thinner during the spring and summer. Daniel Bailey, Video: For 15 years, GRACE tracked freshwater movements around the world. What exactly is a quasar? Did you know we can improve drought, flood and wildfire forecasts by monitoring changes in Earth's gravity from space? Good luck! Test your new knowledge of NASA's work in Earth and environmental sciences. It provides a whole new perspective on our home planet. As Earth Day celebrates its 50th anniversary, the International Space Station, or ISS, celebrates its 20th year of continuous human presence in space. Did you know that satellite data can help scientists find penguin populations? Managing Editor: NASA studies our planet's interconnected systems to better our world. You may want to open the quiz in a separate tab or browser window so you can answer questions as you explore the topics. NASA’s earliest fleet of Earth-observing satellites studied clouds and weather.

Now we can measure wind speed, track fires, estimate tree height and much more using satellite data. With material in both English and Spanish and numerous resources for kids, parents and teachers, Space Place has something for everyone. This Earth Day, go on a webquest to see how NASA helps study and protect the land, air, water, and ice. Good luck! Then see how much you’ve learned by taking the interactive quiz. Have you ever wondered why space exploration should matter to you? Now we can measure wind speed, track fires, estimate tree height and much more using satellite data. Our online nasa trivia quizzes can be adapted to suit your requirements for taking some of the top nasa quizzes. Launch into other worlds while testing your knowledge about space, celestial bodies, and the solar system. 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. Keep track of Earth's vital signs, see the planet in a state of flux and slow the pace of global warming with NASA's free mobile apps. NASA is exploring technologies so aircraft can use electricity instead of jet fuel to power flight. NASA is building an experimental aircraft called the X-59 for quiet supersonic flight over land. Space quiz questions and answers: 15 questions for your home pub quiz SPACE is the source of fantastic facts that have inspired scientists for millennia. Use Earth Now to explore NASA's satellites and the data they collect. You may want to open the quiz in a separate tab or browser window so you can answer questions as you explore the topics. NASA.gov brings you the latest news, images and videos from America's space agency, pioneering the future in space exploration, scientific discovery and aeronautics research.

NASA Aeronautics Works to Lower Emissions. Earth's ice cover is shrinking.