Flagship Program. The Flagship Program is a series of NASA missions to explore the Solar System. It is the largest and most expensive of three classes of NASA Solar System Programs, the other two being the medium-cost New Frontiers Program and the lowest-cost Discovery Program. According to NASA, the cost of a Flagship-class mission is over $1 billion. These missions will be crucial in allowing humans to reach and explore high-priority targets. These critically important targets could help establish the limits of
not flammable; not combustible or easily set on fire. Origin of nonflammable. 1960-1965. First recorded in 1960-65; non- + flammable.
clear. 1  EL2020 - Plastics Safe Contact Cleaner - Aerosol SprayonÂ® EL2020 Plastics Safe Contact Cleaner Aerosol is a fast-evaporating, non-flammable electronic/electrical cleaner that leaves no residue, is safe on all metals and most plastics and may be applied while equipment is operating. 2  EL2020 - Plastics Safe Contact Cleaner - Aerosol.