Asteroid Bennu has been hanging out with Earth for over a million years CNNOSIRIS-REx spacecraft collects large sample of asteroid surface material, NASA confirms Phys.orgBennu's near-Earth lifetime of 1.75 million years inferred from craters on its boulders Nature.comAsteroid samples escaping from jammed NASA spacecraft Wink NewsNasa spacecraft that picked up pieces of asteroid is leaking them into space as it returns home The IndependentView Full Coverage on Google News