
ALT Ridges and bands stretch across Jupiter's icy moon Europa in this view from NASA's Juno spacecraft, revealing the tectonic stresses that the moon has endured over millennia. The day-night boundary is at left. The terrain there is rugged, with pits and troughs. The moon is a dusty beige in color, which contrasts with the dark background of space. Credit: Image data: NASA/JPL-Caltech/SwRI/MSSS Image processing by Björn Jónsson CC BY-NC-SA 2.0

ALT The Expedition 43 crew on the International Space Station took this photo of North Africa while passing overhead. Land and water each take up about half of the image; blue water hugs the curvy land border. White clouds appear over water and land, and at the very top of the image, the darkness of space can be seen. Credit: NASA















