ALT A crisp photo of Mars against black space. The Red Planet appears rust-colored with dark texturing along its middle and a light patch on its lower right side. Credit: USGS Astrogeology Science Center

ALT A newly-released photo of our Moon taken by the crew of Artemis II. The top portion is shadowed by black space. This angle captures a mostly uniform, light gray portion of the lunar surface, with darker patches in the lower third. Craters of various sizes are visible all over the Moon’s surface—most easily visible at the edge of the upper shadow. Credit: NASA

ALT A newly-released photo of Earth's horizon taken during the Artemis II mission from the window of the Orion spacecraft. This view shows the hazy, blue atmosphere on top of faded, textured clouds. The Moon appears as a tiny, white dot in the distance. Credit: NASA

ALT Photograph of Earth captured by the Apollo 17 crew on December 7, 1972. Earth takes up most of the image. Dark blue ocean water and swirling white clouds are visible. Africa is a large brown landmass from the center to the upper left, stretching from about 9 to 12 o'clock. Clouds cover most of the 6 o'clock. Credit: NASA

ALT A full disk image of Earth, as seen from the Orion capsule. The planet is a pale blue, swirling with white clouds and glowing slightly lighter blue in place from reflected light. From about 8 to 9 o'clock, a large brown landmass is Africa, with the Iberian peninsula twinkling with lights just where the planet curves. At the 1 o'clock spot, aurora glow in a thin green glow, just barely separated from the planet's surface. Earth is set against the black of space. Credit: NASA/Reid Wiseman