An __________ is someone who travels and works in space., scientist, pilot, astronaut, A __________ is a vehicle that can fly into space., car, spacecraft, boat, Astronauts use a __________ to live and work while they are in space., rocket, planet, space station, A __________ is used to send people or equipment into space., spacecraft, rocket, balloon, Astronauts __________ with their families using special radios and computers., search, communicate, travel, A spaceship moves in a circle around the Earth. We say it __________ the Earth., lands, visits, orbits, The trip to the Moon was an amazing __________ for the astronauts., journey, plan, dream, Scientists believe that one day we might meet an _________, astronaut, extraterrestrial, engineer, People sometimes wonder if there are __________ watching us from another planet., extraterrestrials, astronauts, scientists.

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