ALT On flight day seven, following their lunar flyby, the Artemis II crew captured this view of a delicate crescent Moon on their journey back to Earth. Along the terminator—the boundary between lunar day and night—low-angle sunlight casts long shadows that accentuate craters, ridges, and subtle variations in terrain. The softly illuminated surface highlights the Moon’s rugged landscape, while much of it remains in shadow. Credit: NASA

ALT As the Artemis II crew flew over the terminator, the astronauts described this boundary between day and night as "anything but a straight line." Crater rims along the terminator stand out as "islands" in the night. Giant chains of craters emanating from the 3.7-billion-year-old Orientale basin can be seen scouring the surface, stretching almost to the terminator. This tells a geologic story: these crater chains produced by the Orientale impact event mar the surface of the relatively flat Hertzsprung Basin (center of this image), which means that Hertzsprung Basin must be even older than Orientale. Credit: NASA

ALT Just over half of the Moon fills the left half of the image. The near side, characterized by the dark patches of ancient lava, is visible on the top third of the lunar disk. Orientale basin, a round crater in the center with a black patch of ancient lava in the center, is wrapped in rings of mountains. The round black spot northeast of Orientale is Grimaldi crater, and Aristarchus crater is the bright white dot in the midst of a dark grey lava flow at the top of the image. Credit: NASA