保护地球，探索宇宙，发现文明
2022年9月4日 Sea and Sky Glows over the Oregon Coast Image Credit & Copyright: Rudy Montoya Explanation: Every step caused the sand to light up blue. That glow was bioluminescence — a blue radiance that also lights the surf in this surreal scene captured in mid-2018 at Meyer’s Creek Beach in Oregon, USA. Volcanic stacks dot the foreground sea, ...
九月份的天空会发生什么？火星在移动，木星的最佳观测时间，以及一个在秋分点寻找方位的巧妙方法。
2022年8月31日 Siccar Point on Mars Image Credit: NASA/JPL-Caltech/MSSS; Processing & License: Kevin M. Gill Explanation: What created this unusual hill on Mars? No one is sure. A good outlook to survey the surrounding area, Siccar Point stands out from its surroundings in Gale Crater. The unusual mound was visited by the robotic Curiosity rover exploring M...
2021年9月10日，即任务的第198个火星日，NASA的毅力号火星车在被称为“罗切特”的岩石附近拍摄了这张自拍照。 影像来源：NASA/JPL-Caltech/MSSS 2021年春季，当NASA的毅力号火星车开始检查耶泽罗陨石坑底部的岩石时，科学家们感到惊讶：由于数十亿年前陨石坑拥有一个湖泊，他们原本预计会发现沉积岩，这种沉积岩是沙子和泥土在曾经潮湿的环境中沉淀时形成。相反，他们发现，地面由两种类型的火成岩组成——一种是由岩浆在地下深处形成，另一种是地表火山活动形成。 8月25日周四发表的四篇新论文描述了这些发现。在《科学》杂志上，有一篇概述了毅力号在2022年4月抵达耶泽罗古河三角洲之前对陨石坑底部的探索；同一杂志上的第二项研究详细描述了由厚岩浆体形成的独特岩石。发表在《科学进展》上的另外两篇论文详细介绍...
2022年8月6日 Stereo Phobos Image Credit: G. Neukum (FU Berlin) et al., Mars Express, DLR, ESA Explanation: Get out your red/blue glasses and float next to Phobos, grooved moon of Mars! Captured in 2004 by the High Resolution Stereo Camera on board ESA’s Mars Express spacecraft, the image data was recorded at a distance of about 200 kilometers from the mar...
Today marks 10 years since the Curiosity rover landed on Mars. Since August 2012, Curiosity has been exploring 3-mile-high Mt. Sharp in Gale Crater. The rover has climbed more than 2,000 feet (612 meters), reaching progressively younger rocks that serve as a record on how Mars has evolved from a wet, habitable planet to a cold desert environment. The photoge...
八月份的天空会发生什么？拿起你的双筒望远镜来观测行星，展望英仙座，以及和天鹅座一起翱翔。
Though Mars is the Red Planet, false-color images can help us learn about its weather and geology. This image shows a variety of wind-related features on the Red Planet near the center of Gamboa Crater. Larger sand dunes form sinuous crests and individual domes. There are tiny ripples on the tops of the dunes, only several feet from crest-to-crest. These mer...
2022年7月3日 Phobos: Doomed Moon of Mars Image Credit: HiRISE, MRO, LPL (U. Arizona), NASA Explanation: This moon is doomed. Mars, the red planet named for the Roman god of war, has two tiny moons, Phobos and Deimos, whose names are derived from the Greek for Fear and Panic. These martian moons may well be captured asteroids originating in the main asteroid bel...
2022年5月2日，即该任务的第3462个火星日，NASA的好奇号火星车使用其桅杆摄像机（简称Mastcam）拍摄到了这张硫酸盐沉积区域的照片。在中心附近看到的黑色巨石被认为是由古代溪流或池塘中沉积的沙子所形成。 影像来源：NASA/JPL-Caltech/MSSS 火星车记录下的惊人的岩层提供了火星远古时期干燥气候的证据。 在过去的一年里，NASA的好奇号火车一直在穿越一个过渡区，从一个富含粘土的区域过渡到一个富含盐分的硫酸盐矿物的区域。虽然科学团队瞄准了富含粘土的区域和富含硫酸盐的区域，以提供火星过去有水的证据，但事实证明，过渡区在科学上也很吸引人。事实上，这种转变可能提供了数十亿年前火星气候发生重大变化的记录，而科学家们才刚刚开始了解这一点。 粘土矿物形成于湖泊和溪流曾经在盖尔陨石坑中泛起涟漪，沉积物沉积...