保护地球，探索宇宙，发现文明
2021年01月12日 A Historic Brazilian Constellation Image Credit & Copyright: Rodrigo Guerra Explanation: The night sky is filled with stories. Cultures throughout history have projected some of their most enduring legends onto the stars above. Generations of people see these stellar constellations, hear the associated stories, and pass them down. Featured h...
Credit：NASA 2020年，美国国家航空航天局（NASA）在月球到火星探测战略方面取得了重大进展，实现了阿尔忒弥斯（Artemis）计划的任务目标，取得了能够造福于人类的重大科学进步，并恢复了美国本土的载人航天发射能力。与此同时，NASA的专门小组迅速采取了行动，协助国家抗击新型冠状病毒肺炎（COVID-19）疫情。 NASA局长吉姆·布里登斯廷（Jim Bridenstine）表示：“NASA在疫情期间表现出的韧性和毅力给全国人民留下了深刻印象。我们与美国商业伙伴一起创造了历史，作出了开创性的发现，推动了科学进步，进一步深化了航空研究和技术研发，甚至还参与了抗击COVID-19疫情的斗争。我们度过了充满挑战的一年，取得了令人难以置信的成就，并为持续的成功开辟了道路。” NASA对美国联邦政府应对COV...
Credit：NASA 阿尔忒弥斯1号任务（Artemis I）整体整合（Green Run）点火测试（hot fire test）的进展；一艘商业货运飞船驶离空间站；探索月球尚未探索区域的新想法……最近新闻速递，尽在「本周NASA」！ 阿尔忒弥斯1号任务太空发射系统（Space Launch System，SLS）火箭核心级段的整体整合点火测试，计划最早于1月17日进行。点火测试是整体整合系列测试的第8次，也是最后一次计划测试，全部的4个火箭发动机都将点火以模拟发射。NASA在12月20日完成了该系列的第7次测试：全箭演习（wet dress rehearsal）。在该测试过程中，核心级段首次装载了超过70万加仑（265万升）的过冷推进剂，而后被排尽。在阿尔忒弥斯1号任务中，SLS将发射一艘无人猎户座（Ori...
In this black and white infrared image, a SpaceX Falcon 9 rocket carrying the company’s Crew Dragon spacecraft is launched on NASA’s SpaceX Demo-2 mission to the International Space Station with NASA astronauts Robert Behnken and Douglas Hurley onboard, Saturday, May 30, 2020, at NASA’s Kennedy Space Center in Florida. The Demo-2 mission was the first ...
2021年01月11日 Moon Phases in 2021 Video Credit: Data: Lunar Reconnaissance Orbiter ; Animation: NASA’s Scientific Visualization Studio; Music: Brandenburg Concerto No4-1 BWV1049 (Johann Sebastian Bach), by Kevin MacLeod via Incompetech Explanation: What will the Moon phase be on your birthday this year? It is hard to predict because the Moon’s appe...
2021年01月10日 Star Cluster R136 Breaks Out Image Credit: NASA, ESA, & F. Paresce (INAF-IASF), R. O’Connell (U. Virginia) et al. Explanation: In the center of nearby star-forming region lies a huge cluster containing some of the largest, hottest, and most massive stars known. These stars, known collectively as star cluster R136, part of the Tarantula...
2021年01月09日 Titan: Moon over Saturn Image Credit: NASA, JPL-Caltech, Space Science Institute Explanation: Like Earth’s moon, Saturn’s largest moon Titan is locked in synchronous rotation. This mosaic of images recorded by the Cassini spacecraft in May of 2012 shows its anti-Saturn side, the side always facing away from the ringed gas giant. The o...
Northrop Grumman’s Cygnus space freighter departs the International Space Station moments after being released from the Canadarm2 robotic arm on Thursday, Jan. 7, 2021, completing a 93-day cargo mission attached to the orbiting lab. The Cygnus spacecraft successfully departed the International Space Station three months after arriving at the space stat...
Much like the delicate filaments of a spider’s web, the lights of the city of Boston seemingly spread from a central point in this image taken by the crew of the International Space Station as it orbited 263 miles above Earth’s surface. Image Credit: NASA 在这张国际空间站(International Space Station)的工作人员拍摄的照片中，波士顿市的灯光似乎从一个中心点扩散开来，就像蜘蛛网上精致的细丝一样。该空间站在距离地球...
2021年01月08日 NGC 1365: Majestic Island Universe Image Credit & Copyright: Mike Selby, Leonardo Orazi Explanation: Barred spiral galaxy NGC 1365 is truly a majestic island universe some 200,000 light-years across. Located a mere 60 million light-years away toward the chemical constellation Fornax, NGC 1365 is a dominant member of the well-studied Fornax C...