A nuclear-electric rocket is a type of spaceship that uses nuclear energy to generate electricity, which is then used to power its engines. Synonyms for this type of rocket include ion propulsion, electric propulsion, and plasma propulsion. These all refer to the use of electrical energy to accelerate charged particles, such as ions, in order to create thrust. Some specific examples of nuclear-electric rockets include the VASIMR, which stands for Variable Specific Impulse Magnetoplasma Rocket, and the Hall effect thruster. These technological advances could potentially revolutionize space travel by allowing for faster, more efficient journeys to other planets and even to the stars.