Donaldjohanson
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NASA
Regions on Asteroid Explored by NASA’s Lucy Mission Get Official Names
The IAU (International Astronomical Union), an international non-governmental research organization and global naming authority for celestial objects, has approved official names for features on Donaldjohanson, an asteroid NASA’s Lucy spacecraft visited on April 20. In a nod to the fossilized inspiration for the names of the asteroid and spacecraft, the IAU’s selections recognize significant sites and discoveries on Earth that…
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NASA
NASA’s Lucy Spacecraft Images Asteroid Donaldjohanson
NASA’s Lucy spacecraft took this image of the main belt asteroid Donaldjohanson during its flyby on April 20, 2025, showing the elongated contact binary (an object formed when two smaller bodies collide). This was Lucy’s second flyby in the spacecraft’s 12-year mission. Launched on Oct. 16, 2021, Lucy is the first space mission sent to explore a diverse population of small bodies…
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NASA
NASA’s Lucy Spacecraft Images Asteroid Donaldjohanson
In its second asteroid encounter, NASA’s Lucy spacecraft obtained a close look at a uniquely shaped fragment of an asteroid that formed about 150 million years ago. The spacecraft has begun returning images that were collected as it flew approximately 600 miles (960 km) from the asteroid Donaldjohanson on April 20, 2025. The asteroid Donaldjohanson as seen by the Lucy…
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Press Releases
NASA’s Lucy Spacecraft Prepares Second Asteroid Encounter
NASA’s Lucy spacecraft is 6 days and less than 50 million miles (80 million km) away from its second close encounter with an asteroid; this time, the small main belt asteroid Donaldjohanson. Download high-resolution video and images from NASA’s Scientific Visualization Studio.NASA/Dan Gallagher This upcoming event represents a comprehensive “dress rehearsal” for Lucy’s main mission over the next decade: the…
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NASA
New Modeling Assesses Age of Next Target Asteroid for NASA’s Lucy
Although NASA’s Lucy spacecraft’s upcoming encounter with the asteroid Donaldjohanson is primarily a mission rehearsal for later asteroid encounters, a new paper suggests that this small, main belt asteroid may have some surprises of its own. New modeling indicates that Donaldjohanson may have been formed about 150 million years ago when a larger parent asteroid broke apart; its orbit and…
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