2020年12月15日 Great Conjunction: Saturn and Jupiter Converge Illustration Credit & Copyright: Sebastian Voltmer Explanation: It’s happening. Saturn and Jupiter are moving closer and will soon appear in almost exactly the same direction. Coincidentally, on the night of the December solstice & […]
副总统介绍阿尔忒弥斯（Artemis）宇航员团队；即将执行的阿尔忒弥斯任务的硬件进展；NASA下一次人类登月任务的科学重点……最近新闻速递，尽在「本周NASA」！ Credit：NASA 12月9日，NASA宣布了18名将组成阿尔忒弥斯团队的NASA宇航员，帮助在月球之上及周围的下一批宇航员任务铺平道路，这也是阿尔忒弥斯计划的一部分。在美国佛罗里达州肯尼迪航天中心举行的第八次美国国家太空委员会（National Space Council）会议上，副总统迈克·彭斯（Mike Pence）介绍了这支团队并发表了讲话：“刚刚念到的名字里就有登上月球的下一位男性和第一位女性，一想到这就感觉很棒，而他
2020年12月14日 Capsule Returns from Asteroid Ryugu Video Credit: JAXA, Hayabusa2 Explanation: The streak across the sky is a capsule returning from an asteroid. It returned earlier this month from the near-Earth asteroid 162173 Ryugu carrying small rocks and dust from its surface. The canister was rele
Dec. 11, 2020, marks the 50th anniversary of NASA’s Langley Research Center’s 14×22 Subsonic Wind Tunnel. The facility is used to assess aerodynamic performance of aircraft over a wide range of takeoff, landing, cruise, and high angle-of-attack conditions. It can provide acoustic, tethered free
2020年12月13日 Geminid Meteors over Xinglong Observatory Image Credit & Copyright: Steed Yu and NightChina.net Explanation: Where do Geminid meteors come from? In terms of location on the sky, as the featured image composite beautifully demonstrates, the sand-sized bits of rock that create the str
2020年12月12日 Saturn and Jupiter in Summer 2020 Image Credit & Copyright: Tunc Tezel (TWAN), Onur Durma Explanation: During this northern summer Saturn and Jupiter were both near opposition, opposite the Sun in planet Earth’s sky. Their paired retrograde motion, seen about every 20 years, i
2020年12月11日 Messier Craters in Stereo Image Credit: Apollo 11, NASA; Stereo Image Copyright Patrick Vantuyne Explanation: Many bright nebulae and star clusters in planet Earth’s sky are associated with the name of astronomer Charles Messier from his famous 18th century catalog. His name is als
一颗绕着一颗336光年远的双星运行的不太可能的行星，可能会为一个离我们更近的星球提供线索：太阳系中一个被称为第九行星的遥远的假设天体。 这张哈勃太空望远镜的影像显示了11颗木星质量的系外行星HD 106906b的一个可能的轨道（虚线椭圆）。这个遥远的世界与它的宿主恒星相距甚远，这些恒星的灿烂光芒在这里被掩盖，以便可以看到这个星球。这颗行星位于其系统的环绕恒星碎片盘之外，类似于我们自己的柯伊伯带，它由海王星以外的小而冰冷的天体组成。碎片盘本身是不对称且扭曲的，这可能是由于任性行星的引力拖曳所致。图像中的其他光点是背景恒星。 影像来源：NASA, ESA, M. Nguyen(加州大学伯克利分校)
Vice President Mike Pence introduces NASA astronauts, from left, Jessica Meir, Joseph Acaba, Anne McClain, Matthew Dominick, and Jessica Watkins during a meeting of the National Space Council inside the Apollo/Saturn V Center at the Kennedy Space Center Visitor Complex in Florida on Dec. 9, 2020. Me
Future lunar landers might come equipped with 3D printed rocket engine parts that help bring down overall manufacturing costs and reduce production time. NASA is investing in advanced manufacturing – one of five industries of the future – to make it possible. Through a series of hot-fire tests in No
