NASA’s Lucy spacecraft reveals contact binary asteroid Donaldjohanson
On April 20, 2025, NASA’s Lucy spacecraft marked a major achievement by performing a close flyby of asteroid 52246 Donaldjohanson, located about 139 million miles (224 million kilometers) from Earth within the main asteroid belt between Mars and Jupiter. This encounter, which brought Lucy within roughly 600 miles (960 kilometers) of the asteroid, was a…