"From the age of four, Abigail Harrison knew she wanted to go to space. At age eleven, she sat down and wrote out a plan--not just for how to become an astronaut, but how to be the first astronaut to set foot on Mars. With a degree in biology, internships at NASA, and a national organization founded to help kids reach for the stars themselves, Astronaut Abby is well on her way to achieving her dreams--and she wants to help others do the same! In...