At the age of nine, Isabel Rossi began working with a retired NASA engineer, building homemade rockets and making mathematical adjustments to improve their flight performance. 
At the age of nine, Isabel Rossi began working with a retired NASA engineer, building homemade rockets and making mathematical adjustments to improve their flight performance. 
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At the age of nine, Isabel Rossi began working with a retired NASA engineer, building homemade rockets and making mathematical adjustments to improve their flight performance.&nbsp;
