WASHINGTON - Small satellites have become the military's favorite space tool, mainly because they're cheap and quick to build. The problem? Many of them float around like lazy couch potatoes, unable to change course once they reach orbit. Enter Parabilis Space Technologies, a California-based startup that just finished hot-fire testing its Dense Orbital Transfer System (DOTS), a 2U propulsion module roughly the size of a household toaster.

DOTS uses a hybrid engine that combines solid fuel with a liquid oxidizer, aiming to blend the storage advantages of solid propellants with the controllability of liquid propulsion. The Space Systems Command called it a “novel application of heritage space propulsion technology” - which is bureaucratese for 'old idea, new box.'

“While cubesats are cost-effective and useful for one-off experimentation and short-term Earth observation or communications missions, they generally lack any ability to move once they are in space,” Space Systems Command noted in a press release, essentially saying what everyone already knew.

The ability to maneuver lets satellites dodge orbital debris, maintain formation with buddies, reposition for new missions, or operate in very low Earth orbit - where atmospheric drag shortens satellite lifetimes but can improve imaging and communications. DOTS features a “cold start” capability, eliminating the need for a lengthy warm-up before firing, allowing operators to respond more quickly to changing conditions. And because the propellants are safe-to-handle, engineers won't have to suit up like they're handling toxic waste.

Parabilis CEO Enrico Attanasio declared that DOTS “delivers a clear leap in cubesat propulsion performance.” With ground testing done, the company now aims to demonstrate the technology in orbit. “Both government and industry partners have expressed interest in partnering on a flight test. Once we have a definitive partner, we could be ready to fly in less than one year,” a company spokesperson said. So, if you've got a rocket going up soon and want a toaster-sized thruster, you know who to call.