Eight-year-old problem-solver Terysa is determined to win the school science fair. There is only one snag: she has so many good ideas, she doesn't know which one to choose.

Terysa loves astronomy, so she wants her project to be space-related. But what exactly should she present? Luckily, her sister Shana is an astronomy wiz and is on hand to help. Shana inspires Terysa with the tale of mathematician Dorothy Vaughan, NASA's first Black supervisor and a computer programming pioneer.

Together, the sisters puzzle out the Python code that will get Terysa's science project moving all on its own, and will soon have a project that is out of this world. But will it be enough to win the top science fair prize?