保护地球，探索宇宙，发现文明
2020年8月16日 NGC 6814: Grand Design Spiral Galaxy from Hubble Image Credit: ESA/Hubble & NASA; Acknowledgement: Judy Schmidt Explanation: In the center of this serene stellar swirl is likely a harrowing black-hole beast. The surrounding swirl sweeps around billions of stars which are highlighted by the brightest and bluest. The breadth and beauty of the d...
2020年8月15日 Mars at the Moon’s Edge Image Credit & Copyright: Sergio Scauso Explanation: Does the Moon ever block out Mars? Yes, the Moon occasionally moves in front of all of the Solar System’s planets. Just this past Sunday, as visible from some locations in South America, a waning gibbous Moon eclipsed Mars. The featured image from Córdoba...
We all have to do our housekeeping chores, even when we command the crew aboard the International Space Station. This past weekend, NASA astronaut and Expedition 63 Commander Chris Cassidy was no exception as he collected trash for disposal during weekend housekeeping activities. Image Credit: NASA 所有人都要做家务，甚至当我们在国际空间站指挥宇航员的时候。在过去的这个周末，NASA的宇航员兼第63号远征军指挥官克里斯...
2020年8月14日 NGC 5189: An Unusually Complex Planetary Nebula Image Credit: NASA, ESA, Hubble, HLA; Reprocessing & Copyright: Jesús M. Vargas Explanation: Why is this nebula so complex? When a star like our Sun is dying, it will cast off its outer layers, usually into a simple overall shape. Sometimes this shape is a sphere, sometimes a double lobe, and so...
8年之前，美国航空航天局（NASA）的好奇号（Curiosity）火星车降落在了火星表面，而在不久之后，它将迎来它的火星车小伙伴——毅力号（Perseverance）。 2012年8月5日，好奇号火星探测车的轮子第一次落到了直径96英里（约154公里）的盖尔陨石坑（Gale Crater）内，自此以后，好奇号已经游览了相当多的火星景点。它的主要研究任务是：弄清数十亿年前的火星上，是否具有可能支持微生物生命存活的水、化学物质和能源。 这8年间，好奇心走过的距离超过14英里（约23公里），沿途钻取了26份岩石样本、铲挖了6份土壤样本，这些火星样本表明，远古时期的火星的确是适合生命存活的。研究古岩层的质地和组成，有助于科学家弄清楚火星气候随时间变化的情况，推演出它是如何在历史的推进中失去湖泊和溪流、变成如今的寒冷沙漠...
Technicians at NASA’s Kennedy Space Center in Florida are working to install an adapter that will connect the Orion spacecraft to its rocket for the Artemis I mission around the Moon. This is one of the final major hardware operations for Orion inside the Neil Armstrong Operations and Checkout Building prior to integration with the Space Launch System (SLS) ...
As of March 2020, our Mars Odyssey spacecraft has captured these six views of the Martian moon Phobos. The orbiter’s infrared camera, the Thermal Emission Imaging System (THEMIS), is used to measure temperature variations that provide insight into the physical properties and composition of the moon. Chronologically, the views represent waxing, waning a...
2020年8月14日 Jupiter and Saturn Rising Beyond Alien Throne Rock Image Credit & Copyright: Marcin Zając Explanation: What planets are those behind that unusual rock spire? Saturn (lower left) and Jupiter. This month, after sunset, the bright planetary duo are quite prominent toward the southeast. Now your view of our Solar System’s largest planets mi...
2020年8月2日，美国太空探索技术公司（SpaceX）的奋进号载人龙飞船在佛罗里达彭萨科拉海岸附近的墨西哥湾溅落后不久，宇航员罗伯特•本肯(Robert Behnken，左)和道格拉斯•赫尔利（Douglas Hurley）在SpaceX的GO Navigator救援船上出现。NASA商业载人计划的Demo-2测试飞行是第一次将宇航员送入国际空间站，并在一艘商用建造和操作的飞船上安全返回地球。本肯和赫尔利在太空中度过64天后返回了地球。 图片来源：NASA/比尔•英格尔斯（Bill Ingalls） 2020年8月3日，宇航员赫尔利和本肯成功降落在墨西哥湾。 2019年8月13日，NASA宇航员赫尔利（左）和本肯在佛罗里达州卡纳维拉尔角的三叉戟盆地，进行SpaceX载人龙飞船的机组人员撤离演练。 图片来源：N...
If humans could travel to this giant planet, we would see a world still glowing from the heat of its formation with a color reminiscent of a dark cherry blossom, a dull magenta. Using infrared data from the Subaru Telescope in Hawaii, astronomers discovered this gas giant orbiting a bright star named GJ 504 in 2013. Several times the mass of Jupiter and simi...