How long did Apollo 11 take to travel to the Moon?

• A. 2 days
• B. 3 days
• C. 4 days
• D. 5 days

Answer: (B)

Travel to the Moon takes about three days because the spacecraft follows a translunar trajectory, not a straight-line flight. After being placed on this path, it coasts through space along an elliptical route that takes time to cover the distance to the Moon. The distance and the orbital mechanics involved mean the coast lasts roughly 73–76 hours, which is about three days. Apollo 11’s journey fits this pattern, arriving in lunar vicinity after about three days in flight. The other durations don’t align with how the trajectory is designed to work: too short would require moving faster than the mission did, while longer would imply a slower transfer than was used.