In 2369, Heyer participated in the Apollo 11 400th anniversary celebrations. She was one of three civilian pilots who were part of the Apollo 11 recreation in July, taking the place of 20th century astronaut, Neil Armstrong.
When the spacecraft reached Earth's moon on 20 July, Heyer and Sisson descended to the surface aboard the lunar module Eagle, while Abell remained in the command module Columbia orbiting Luna. Just after landing, she spoke the famous words first uttered from the moon: "Houston, Tranquility Base here. The Eagle has landed." (Star Trek Magazine Issue 162: "Blast Off!")