Ten-year-old Lauren Kovalcik could be playing a game on her home computer as she stares intently at a video monitor and maneuvers a joystick.

But this is no game.

She's doing the serious work of operating a remote robot arm located in the greenhouse of her space station. Her job: Use the robot to place a plant's leaf into a container so its chlorophyll content can be measured.

It's a lot of responsibility for someone so young, but she said she can handle it.

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