1. The ____ trained for years before going to space. 2. The International ____ ____ orbits around the Earth. 3. The space ____ is designed to protect astronauts in space. 4. The satellite sends signals back to ____. 5. The ____ ____ is our galaxy. 6. Venus is a ____ that is very hot . 7. The ____ travelled to different planets. 9. Earth is the third planet from the ____. 10. Scientists ____ new planets to find out more about them. 11. The ____ to Mars lasted several years.

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