watersapp Nasa space apps challenge https://docs.google.com/document/d/1I_woKu-AuQrCwIgGFwozxGZfVneSDZNFyHMUG2kU1kk/edit?usp=sharing https://docs.google.com/presentation/d/1zG0Z0VIUJhwMbJyn-L7YA86dEdKLV4tNjsSMpQqOXO8/edit?usp=sharing