NASA snaps detailed photos of ‘strikingly complicated’ asteroid

NASA’s Lucy spacecraft recently completed its second rendezvous with an asteroid, this time with the peculiarly named Donaldjohanson space rock. On April 20, Lucy’s Long-Range Reconnaissance Imager (L’LORRI) captured images of the elongated asteroid from a distance of about 600 miles, revealing the asteroid’s intricate geology. According to Hal Levison, Lucy’s principal investigator at the Southwest Research Institute, these images provide valuable insights into the asteroid’s formation and the processes that shaped our Solar System.
The high-resolution photos taken by Lucy show the asteroid’s complex structures, confirming previous observations that Donaldjohanson has a 10-day brightness variation period. The images also reveal the asteroid’s elongated shape, believed to be the result of a collision between two smaller bodies. Of particular interest is the unique neck shape connecting the two lobes of Donaldjohanson.
Initial estimates suggest that Donaldjohanson is larger than previously thought, measuring about 5 miles long and 2 miles wide. The asteroid’s size exceeded Lucy’s field of view, requiring additional data to be downlinked to Earth over the next week. This data, collected by the L’Ralph color imager and infrared spectrometer, as well as the L’TES thermal infrared spectrometer, will provide further insights into the composition and structure of the asteroid.
This encounter with Donaldjohanson marks Lucy’s second close approach to an asteroid, following its previous encounter with Dinkinesh and its satellite Selam. As part of its 12-year mission, Lucy is scheduled to study a total of 10 asteroids, with Donaldjohanson being the second in the lineup.
Tom Statler, a NASA program scientist for the Lucy mission, emphasized the significance of Lucy’s upcoming exploration of the Trojan asteroids, stating that it has the potential to unveil new insights into the history of our solar system. Lucy will now navigate through the main asteroid belt of the solar system, heading towards its main target—the Jupiter Trojan asteroid Eurybates. The final flyby is expected to take place in August 2027.
In conclusion, Lucy’s recent rendezvous with the asteroid Donaldjohanson has provided researchers with valuable data and insights into the complex geology and formation processes of asteroids in our Solar System. The spacecraft’s continued mission promises to uncover more mysteries and shed light on the evolution of our cosmic neighborhood. The Importance of Mental Health in the Workplace
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