ALL ABOUT SPACECRAFT LET’S FIND OUT TRANSPORTATION TRACY BROWN HAMILTON
WHY HUMANS EXPLORE SPACE Humans have been interested in exploring or studying space for thousands of years Starting in about 1600 scientists used telescopes to get a better view of the objects in the sky Only in recent decades has it been possible to travel into space to get a closer look at the Moon and other bodies More than 5,000 spacecraft have been An astronaut from the space shuttle Challenger floats in outer space 4
launched into space to gather information since 1957 They include spacecraft with humans onboard space probes and satellites The Soviet Union now Russia and the United States were originally the main countries exploring space Many other countries are now involved including China and the European countries that are part of the European Space Agency Through space exploration humans have learned a great deal about the planets stars and other objects in space NASA’s Hubble Space Telescope captured this image of stars seen in our Milky Way galaxy Without space exploration we wouldn’t have solar panels LED televisions or ear thermometers These are just a few inventions to come from studying space Think About It 5
