保护地球，探索宇宙，发现文明
NASA astronaut Robert Behnken works during the Wednesday, July 1, 2020, six-hour and one-minute spacewalk to swap an aging nickel-hydrogen battery for a new lithium-ion battery on the International Space Station’s Starboard-6 truss structure. NASA astronauts Chris Cassidy and Behnken concluded their spacewalk at 12:14 p.m. EDT. During the spacewalk, th...
On June 26, 2020, NASA astronauts Bob Behnken and Chris Cassidy conducted the first of two spacewalks to swap batteries and upgrade power systems on the International Space Station’s Starboard-6 truss structure. Behnken is pictured here during the six-hour and seven-minute excursion. The two astronauts conducted a second spacewalk on July 1 to complete...
On June 26, 2020, spacewalkers Bob Behnken and Chris Cassidy completed the first of two scheduled spacewalks to replace batteries on one of two power channels on the far starboard truss (S6 Truss) of the International Space Station. In this image posted by @AstroBehnken on Twitter, he said: “Yesterday, @Astro_SEAL snapped this shot from our worksite on...
On June 21, 2020, as the International Space Station orbited over Kazakhstan and into China, an external high-definition camera captured this picture of the solar eclipse shadowing a portion of the Asian continent. The eclipse was visible across broad sections of Africa, the Middle East and Asia. In the left foreground, is the H-II Transfer Vehicle-9 from JA...
NASA astronauts (from top) Chris Cassidy and Robert Behnken work on U.S. spacesuits inside the International Space Station’s Quest airlock. The two are slated to conduct spacewalks on Friday, June 26, and Wednesday, July 1, to begin the replacement of batteries for one of the power channels on the orbiting laboratory. The spacewalking astronauts will r...
这幅艺术概念图显示了6种经过精准调节的激光，用于减慢NASA的冷原子实验室内的原子，冷原子实验室能将原子冷却到接近绝对零度的低温。 图片来源：NASA/喷气推进实验室-加州理工 到这个月为止，距离科学家首次创造出第五种物质状态已经过去了25年，这种特别的物质状态完全不同于固体、液体、气体或是等离子体，具有非同寻常的性质。因证实了实验条件下这种物质状态的存在，埃里克·康奈尔（Eric Cornell）、卡尔·威曼（Carl Wieman）和沃夫冈·克特勒（Wolfgang Ketterle）共享了2001年的诺贝尔物理学奖。 而现在，这种物质状态又有了新突破，相关研究（DOI: 10.1038/s41586-020-2346-1）已于近期发表在《自然》（Nature）杂志上。2018年7月，美国航空航天局（NAS...
Japan’s resupply ship, the H-II Transfer Vehicle-9 (HTV-9), is pictured attached to the International Space Station’s Harmony module. Stowed inside the Japanese space freighter is the HTV-8 cargo pallet that was brought up to the station on a previous resupply mission. The pallet contains old nickel-hydrogen batteries for disposal that were disco...
Seen through the windows of firing room four of the Launch Control Center, a SpaceX Falcon 9 rocket carrying the company’s Crew Dragon spacecraft is launched from Launch Complex 39A 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...
A SpaceX Falcon 9 rocket with the company’s Crew Dragon spacecraft onboard is seen illuminated on the launch pad at Launch Complex 39A as preparations continue for NASA’s SpaceX Demo-2 mission, Saturday, May 30, 2020, at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon sp...
2020年5月30日，星期六，在佛罗里达州肯尼迪航天中心，SpaceX Demo-2任务的猎鹰9号火箭搭载着龙飞船从39A发射场发射升空，宇航员罗伯特·贝恩肯和道格拉斯·赫尔利将随火箭前往国际空间站。这次发射是SpaceX公司的龙船和猎鹰9号火箭首次作为该公司商业宇航员计划的一部分发射到国际空间站。这次试飞是SpaceX宇航员运输系统的端对端演示。贝恩肯和赫尔利于美国东部时间5月30日下午3点22分在肯尼迪航天中心39A发射中心发射升空。自2011年航天飞机计划结束以来，美国宇航员再次从美国本土到近地轨道的美国火箭上再次发射，人类太空飞行的新时代将开始。 来源：NASA/Bill Ingalls NASA的宇航员们有史以来第一次在美国本土通过一艘商业建造和操作的美国载人宇宙飞船发射升空，前往国际空间站。美国东部...