Weird & Interesting science, take 2

[classicdrogn]

Throttleable solid rocket fuel


non-embedded

Also covers a liquid monopropellant developed by the same company, since apparently even the usually extremely stable HIPEP (the first stuff) won't stop burning at SRB scale. The energy density and lack of sloshing around makes it good for smaller applications like satellite stationkeeping motors though, and apparently also practical effects for movies.