Photo: ESA/Michael Benson/Kinetikon Pictures
In the same way that sailors long to make landfall after a long voyage at sea, space travelers—Benson conceives—will yearn for “planetfall,” which he defines as the act of reaching a planet after a space journey. It’s easy to imagine that this view of Earth would warm a traveler’s heart. This photo was taken by the Rosetta spacecraft as it headed away from Earth on its way to study a comet.
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