John D. Cook • 4/2/2026

Artemis II, Apollo 8, and Apollo 13

This article compares the Artemis II mission to the Apollo 8 and Apollo 13 missions, focusing on trajectory differences. Artemis II, like Apollo 13, will use a lunar free-return trajectory, swinging around the moon without entering orbit. It will spend time in high Earth orbit before trans-lunar injection, aiming to break the distance record set by Apollo 13. The article provides technical details on orbits, timing, and perilune distances, making it relevant to space technology and engineering.

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#Orbital Mechanics #Space Exploration #Trajectory Analysis