国际空间站正在进行的一项创新实验可能会帮助研究人员在对抗阿尔茨海默症和帕金森氏症等侵袭性神经退行性疾病方面取得新的进展。 由位于阿拉巴马州亨茨维尔的特利丹布朗工程公司（Teledyne Brown Engineering）公司研发并领导的环剪跌落实验（The Ring-Sheared Drop experiment）将入驻空间站的微重力科学手套箱（Microgravity Science Glovebox），以便研究那些在与神经退行性疾病作斗争的患者的脑组织中所发现的潜在破坏性的淀粉样纤维或蛋白聚合体的形成。这类疾病可能会导致人类神经系统的驱动因素 – 神经元，受损或丧失功能。 正 […]
Orson John started his career at NASA as a summer intern, continued as a NASA Pathways student, and began a career at NASA’s Goddard Space Flight Center as an engineer after college. He earned a Bachelor of Science degree in physics in 2010 from the New Mexico Institute of Mining & Technol
2019 November 6 21st Century M101 Image Credit: NASA, ESA, CXC, JPL – Caltech, STScI Explanation: One of the last entries in Charles Messier’s famous catalog, big, beautiful spiral galaxy M101 is definitely not one of the least. About 170,000 light-years across, this galaxy is enormous,
The Northrop Grumman Antares rocket, with Cygnus resupply spacecraft onboard, launches from Pad-0A of NASA’s Wallops Flight Facility, Saturday, November 2, 2019, in Virginia. This is Northrop Grumman’s 12th contracted cargo resupply mission to the International Space Station, and is delivering
2019 November 5 Spiral Galaxies Spinning Super-Fast Image Credit: Top row: NASA, ESA, Hubble, P. Ogle & J. DePasquale (STScI); Bottom row: SDSS, P. Ogle & J. DePasquale (STScI) Explanation: Why are these galaxies spinning so fast? If you estimated each spiral’s mass by how much light
在这张由哈勃太空望远镜拍摄的图像中，充斥在星系之间的是一些神秘的蓝光弧。这些实际上是星团后面遥远星系的扭曲图像。所有正常物质和暗物质聚集在星系团内部，它们共同的引力扭曲了时空，影响了穿过星系团向地球传播的光。 版权：美国国家航空航天局（NASA），欧洲航天局（ESA），J. Lotz和HFF团队（STScI） 暗物质的真正性质是宇宙中最大的谜团之一。科学家们正试图确定暗物质到底是由什么组成的，以便能够对其进行直接探测，但我们目前的认识有很多差距，很难知道我们究竟在寻找什么。宽视场红外巡天望远镜（Wide-Field Infrared Survey Telescope，WFIRST）探测宇宙大范
2019 November 4 Near the Center of the Lagoon Nebula Image Credit & Copyright: Zhuoqun Wu, Chilescope Explanation: Stars are battling gas and dust in the Lagoon Nebula but the photographers are winning. Also known as M8, this photogenic nebula is visible even without binoculars towards the const
2019 November 3 Daphnis and the Rings of Saturn Image Credit: NASA, JPL-Caltech, Space Science Institute, Cassini Explanation: What’s happening to the rings of Saturn? A little moon making big waves. The moon is 8-kilometer Daphnis and it is making waves in the Keeler Gap of Saturn’s rin
When astronaut John Herrington made his voyage to space aboard Space Shuttle Endeavour’s STS-113 mission, he became the first Native American in space. An enrolled member of the Chickasaw Nation, Herrington carried its flag on his 13-day trip to space, as well as several personal items with hi
2019 November 2 Inside the Flame Nebula Image Credit & Copyright: Optical: DSS; Infrared: NASA/JPL-Caltech; X-ray: NASA/CXC/PSU/ K.Getman, E.Feigelson, M.Kuhn & the MYStIX team Explanation: The Flame Nebula stands out in this optical image of the dusty, crowded star forming regions toward Or
