What term refers to the path of a body through space?

The term that refers to the path of a body through space is "trajectory." This term is often used in physics and aerospace contexts to describe the motion of an object as it travels through space, influenced by various forces such as gravity, thrust, and drag. Trajectory encompasses both the shape of the path and the physical laws governing the object's movement, including the effects of acceleration and changing velocity.

While "orbit" might suggest a specific type of trajectory related to celestial bodies circling each other due to gravitational forces, it is a more limited term that applies only to those scenarios. "Course" and "pathway" are more generic terms that do not precisely convey the scientific nuances associated with motion through space, therefore making "trajectory" the most accurate and appropriate choice for describing the specific path taken by an object in motion.