NASA’s Lucy spacecraft recently completed a successful flyby of the asteroid named Donaldjohanson, capturing stunning imagery of the object’s unique double-lobed shape. This asteroid, which was named after the anthropologist who discovered the fossils of the human ancestor Lucy, is classified as a contact binary due to its two ridges in the narrow neck.
The images sent back by Lucy revealed the intricate geological features of asteroid Donaldjohanson, with NASA likening the ridged structure to a pair of nested ice cream cones. Hal Levison, the principal investigator of the Lucy mission, highlighted the importance of studying these complex structures to gain insights into the formation processes of planets in our solar system.
During the flyby, Lucy came within 600 miles of Donaldjohanson, providing detailed images that confirmed its status as a contact binary. The asteroid was found to be larger than previously estimated, measuring about 5 miles in length and 2 miles in width at the widest point.
This encounter marked a significant milestone for the Lucy mission, which aims to study Jupiter Trojan asteroids trapped in resonance points in Jupiter’s orbit. With no spacecraft ever having explored a Jupiter Trojan up close, the upcoming encounters represent a groundbreaking opportunity to uncover new insights into the history of our solar system.
Tom Statler, the NASA program scientist for the Lucy mission, praised the early imagery captured by the spacecraft’s instruments, highlighting the potential for groundbreaking discoveries once Lucy reaches the Trojan asteroids. Over the next few weeks, researchers will analyze data from Lucy’s instruments as the spacecraft continues its journey through the main asteroid belt.
The next major milestone for Lucy will be its first encounter with the Jupiter Trojan asteroid Eurybates in August 2027, followed by four additional Trojan encounters between 2027 and 2033. The mission’s ultimate goal is to shed light on the formation and evolution of our solar system by studying these ancient asteroids.
This article was originally published by Universe Today and can be accessed on their website. Stay tuned for more updates on Lucy’s mission as it continues its journey through the cosmos.
