NASA's Lucy will venture as close as 596 miles to this asteroid, an estimated 2 ½ miles in length but much shorter in width. Scientists should have a better idea of its size and shape following ...

NASA's Lucy spacecraft gets up-close look of strange peanut-shaped asteroid: See images Donaldjohanson is likely a fragment from a collision 150 million years ago, making it one of the youngest in ...

Lucy's remains were found in 1974 in Ethiopia at a site called Hadar. Several paleoarchaeologists—including Donald Johanson, Mary Leakey, and Yves Coppens—began surveying the site for signs of ...