Astronomers studied near-Earth asteroid 1950 DA and discovered that the body, which rotates extremely quickly, is held together by cohesive forces called van der Waals, never detected before on an asteroid.
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/V...
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/V...