保护地球，探索宇宙，发现文明
This image taken by the Mars Reconnaissance Orbiter spacecraft’s HIRISE instrument on Oct. 23, 2022, of the northern plains of Arabia Terra shows craters that contain curious deposits with mysterious shapes and distribution. For instance, the deposits are located on the south sides of the craters, but not usually in the north, and are found only in craters l...
在这张NASA洞察号着陆器位于火星表面的示意图中，可以看到下方的火星地下结构层次，背景中则可以看到可怕的沙尘。 图片来源：巴黎地球物理研究所/尼古拉斯·萨特（Nicolas Sarter） 热探针始终无法获得挖掘所需的摩擦力，而该任务也已获得进一步指示，可以继续进行其他的科学工作了。 由德国航空航天中心（German Aerospace Center，DLR）开发和制造，美国航空航天局（NASA）洞察号（InSight）着陆器所部署在火星上的热探针，已经结束了它的相关任务。自2019年2月28日以来，这一名为“鼹鼠”（mole）的热探测器就一直在尝试深入火星表面之下，希望能测得火星的内部温度，为我们带来火星内部热源的详细信息，解释火星演化和地质改变的原因。但是火星土壤出乎意料的结块趋势，让长钉状的“鼹鼠”失去了...
The Martian ice cap is like a cake with every layer telling a story. In this case, the story is one of climate change on Mars. This image of an exposed section of the north polar layered deposits (NPLD) looks much like a delicious slice of layered tiramisu. The NPLD is made up of water-ice and dust particles stacked one on top of the other. However, instead ...
Gullies on Mars form during the winter, fluidized by carbon dioxide frost, and scientists monitor sites on the planet for activity throughout the year. In this mid-winter scene, a Martian gully is almost completely frosted over the pole-facing slope within the shadow. The map is projected here at a scale of 50 centimeters (19.7 inches) per pixel. (The origin...
This image taken by the Mars Reconnaissance Orbiter spacecraft shows sedimentary rock and sand within Danielson Crater, an impact crater about 42 miles or 67 kilometers in diameter, located in the southwest Arabia Terra region of Mars. The rock was formed millions or billions of years ago when loose sediments settled into the crater, one layer at a time, and...