" I’ve been on 26 space missions; they range from suborbital to orbital to shuttle experiments to planetary missions. "
- Alan Stern

In this statement, Alan Stern reflects on his extensive career in space exploration by sharing a summary of his diverse mission experiences. He highlights that he has participated in 26 different missions, each with varying degrees of complexity and scope, ranging from suborbital flights to orbital missions, shuttle experiments, and even planetary expeditions.

The quote underscores the remarkable breadth of Stern's contributions to the field of space exploration. By mentioning these distinct types of missions, he not only demonstrates his profound expertise but also conveys the excitement and challenge inherent in each type of mission. Suborbital flights provide a taste of space without completing an orbit around Earth, while orbital missions involve circling our planet for extended periods. Shuttle experiments add another layer of complexity with their focus on conducting scientific research aboard spacecraft. Finally, planetary missions represent some of the most ambitious endeavors, aiming to explore other celestial bodies in our solar system and beyond. This journey through various mission types showcases Stern's versatility as a scientist and his unwavering dedication to advancing human knowledge about space.

Alan Stern is a renowned American planetary scientist known for his significant contributions to space exploration. He has been involved in numerous high-profile missions, including the New Horizons mission that provided humanity with its first close-up look at Pluto and other Kuiper Belt objects. Stern's extensive experience spans over several decades, making him one of the most influential figures in contemporary astronomy and space science.