Artist's concept of Bennu and Ultima Thule
![Artist's concept of Bennu and Ultima Thule](https://planetary.s3.amazonaws.com/web/assets/pictures/_768x448_crop_center-center_60_line/111607/20181226_bennu-mu69-artist-concept.jpg 768w, https://planetary.s3.amazonaws.com/web/assets/pictures/_576x336_crop_center-center_60_line/111607/20181226_bennu-mu69-artist-concept.jpg 576w)
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