火星的乌托邦平原
2021年05月21日 Utopia on Mars Image Credit: NASA, The Viking Project, M. Dale-Bannister (Washington University) Explanation: Expansive Utopia Planitia on Mars is strewn with rocks and boulders in this 1976 image. Constructed from the Viking 2 lander’s color and black and white image data, the scene approximates the appearance of the high northern martian ...