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Peggy Whitson is an astronaut. She works for NASA. She loves science. Peggy traveled to space three times. Life in space is different from life on Earth. Find out about Peggy’s life in space. She orbited. Peggy lived here when…
NASA plans to send astronauts to Mars in about 15 years. It will be the first time people have set foot on that planet. Read about how NASA is getting ready. A Cold, Dry Planet Mars is a cold place.…
