Final answer:
An external force is necessary to set a stationary object in motion in outer space, in accordance with Newton's first law of motion.
Step-by-step explanation:
Regarding the statement asking if an external force is required to set a stationary object in motion in outer space away from all gravitational influences and atmospheric friction, the answer is true. According to Newton's first law of motion, an object at rest will stay at rest until an external force acts upon it to initiate motion. This law holds true even in the vacuum of space, as the absence of gravity and friction does not negate the need for a force to change an object's state of motion.