disjunction drive

artist's concept of a disjunction drive spacecraft

Artist's concept of a disjunction drive spacecraft. Credit: Popular Science.

A disjunction drive is one of the most speculative of the seven types of hypothetical space drives suggested by Marc Millis of the Breakthrough Propulsion Physics Program at NASA's Glenn Research Center (see Millis drives).


The term "disjunction" refers to the idea of separating the source of a field from that which reacts to the field (normally considered inseparable), resulting in forces on the part that normally reacts to the field.