Atmosphere
Through studying bodies in space, we also learn about Earth’s atmosphere.
e.g. By comparing Earth with planets close to Earth (Mars and Venus), we can see how liquid water has affected the development of Earth’s atmosphere.
e.g. Scientist also learn how changes visible on the sun’s surface can cause periods of cooling.
Space exploration provided us with technology that makes life on Earth easier.
Satellites collect data from every region of our planet. The data are sent to receivers on Earth and converted into images. Scientist have learned from the space program how to enhance such images to gain more information.
Weather satellites – scientist can provide warnings of dangerous storms long before they strike populated areas.
Other satellites – used for wildlife preservation, conservation of natural resources and mapping.
Technology spinoffs
NASA often creates advanced technology to meet the special demands of space travel.
Design techniques developed to meet the need of spacecraft have improved devices used on Earth. (tools for diagnosing diseases, devices that help people overcome disabilities, protective suit for firefighters, systems for purifying air, water, and food. )
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