Solar Dynamics Laboratory's Smart Design Fosters Perfect Fit

Solar Dynamics Observatory (SDO) spacecraft bus was lowered onto the propulsion module and it attached on the first try. "Its like lowering a telephone booth over a person," said Gary Davis, SDO propulsion subsystem manager at NASA Goddard Space Flight Center, Greenbelt, Md. "The mechanical people made the operation look easy. It's never easy. There are some mechanical things you can never model and predict."

Credit: NASA/Goddard Space Flight Center

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