The Trojan clusters are “thought to be remnants of the primordial material that formed the outer planets,” according to a Facebook post by NASA.
“The Lucy Mission hopes to expand our understanding of solar system evolution by visiting these 4.5-billion-year-old planetary ‘fossils,’” NASA says.
It is believed that the asteroids are robust in carbon compounds and may provide novel information about the formation of the planets, and possibly the development of life here on Earth, according to Reuters.
Reporter Nick Gilbertson explains why the mission was named Lucy:
The probe was named after the 3.2 million-year-old skeletal remains found in Ethiopia during a 1974 expedition led by Donald Johnson, according to Reuters. The remains were named Lucy after the hit Beatles song “Lucy in the Sky with Diamonds.”
Missions used to be named after famous scientists, like Kepler, Galileo, and Hubble." CEH