Apogee is a research area that focuses on the highest point in the orbit of a celestial body, such as a satellite or spacecraft. It is the point farthest from the Earth in the orbit of an object that is in orbit around the Earth. In terms of space exploration, researchers may study apogee to understand the dynamics of orbits, to plan trajectories for spacecraft, and to optimize communications and data transmissions between Earth and satellites at their highest point in orbit. Apogee is an important concept in the field of aerospace engineering and space science.