ocean it will go back. >> it is literally out of this world. >> pretty much. >> interacting with other girls makes them realize they're not alone in this. i really hope to show the girls that girls can do anything they want to. >> hello world! >> and welcome, congratulations. >> thank you, thank you. >> so you're at stanford in your second year? >> standford. >> studying computer engineering. >> i don't even know what that means. that's how dumb i am. >> i'm currently the lead for the mars rover project. we built a mars rover to compete in a competition similar to what i did in high school. i'm so excited about that. >> congratulations. you're a young wonder. >> thank you so much. >> check out christina's story at cnn.com. next, we honor a hero who connects children to the