Los Alamos National Laboratory (LANL) scientists recently flight tested a new rocket design that included a high-energy fuel and motor design that they say also delivers a high degree of safety. Bryce Tappan, energetic materials chemist at LANL, said Thursday in a statement that, typically, a propellant that is high performance is not as safe of a material. Conventional solid-fuel motors work by combining a fuel and an oxidizer, a material usually rich in oxygen, to enhance the burning of…