ALT A starfield filled with thousands of stars and shining clouds of dust. The Milky Way\u2019s elegant spiral structure is dominated by just two arms wrapping off the ends of a central bar of stars. Spanning more than 100,000 light-years, Earth is located along one of the galaxy\u2019s spiral arms, about halfway from the center. Credit: NASA

ALT A crescent Earth setting behind the Moon\u2019s horizon. Credit: NASA

ALT Earth setting behind the Moon as seen by the Artemis II crew. Over half the left side of the image is filled by the gray lunar surface, pocked with craters. Credit: NASA

ALT A close view of the Moon. Jagged circles of craters dot the gray surface, fading to dark on the left side of the image. Credit: NASA

ALT A crescent Earth setting behind a hemisphere of the Moon. Credit: NASA

ALT One-third of Earth peeking through the window of the Orion capsule. The planet is a dreamy pale blue, swirling with white clouds and reflected sunlight. Although Earth only fills a fraction of the image it is the brightest object in the image by far. The capsule window is surrounded by a thick frame held in place with bolts, reminiscent of a heavy duty airplane window. It is dark in the capsule, but the outlines of straps and various components of the capsule are visible. Brighter white components are visible in the upper right corner. Credit: NASA/Reid Weisman