Final answer:
Titus' trip is significant as he was the only scientist to explore the Moon, contributing unique scientific knowledge and insights into the early solar system.
Step-by-step explanation:
Titus' trip to the moon is significant because it marked a unique moment in human exploration, as he was the sole scientist to walk on the lunar surface during the Apollo 17 mission. His role contributed to a deeper understanding of the Moon's geology and offered invaluable insights into the history of our planetary system.
The exploration of the Moon provides a preserved record of the early solar system, an invaluable benchmark, since Earth's active geology has erased much of our planet's early impact history.