Space Twins: Scott and Mark Kelly

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Who are Scott and Mark Kelly?

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The only twin astronauts in NASA history! Scott and Mark are identical twins who both became astronauts. Mark is six minutes older than Scott.

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How long did Scott Kelly stay in space?

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Scott Kelly spent ONE WHOLE YEAR on the International Space Station (ISS), floating in zero gravity and doing scientific experiments.

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What inspired the Kelly brothers to become astronauts?

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Watching the Moon landing on TV as children made them dream of space exploration. They both achieved their childhood dream!

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Why was Scott and Mark's mission special?

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NASA used them as a unique science experiment to study how space travel affects the human body by comparing an astronaut in space with his twin on Earth.

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What did Scott miss while in space?

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Scott missed simple things like going outside, hearing birds sing, and feeling normal gravity.

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Why is the Kelly twins' research important?

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Their mission helps scientists understand how space travel impacts humans, which is crucial for planning future long trips to Mars!