It’s hard to imagine what the surface of asteroid Bennu might look like – it’s shortest distance from Earth still 250,000 miles away – but the video “Tour of Asteroid Bennu” brings us on a journey to ...

A field of grass sways in the wind, each blade clearly defined in yellow and green. A molecule of DNA, its 65,000 atoms represented by gleaming spheres, twists and folds into a thick, knotty ring.