保护地球，探索宇宙，发现文明
Rosemary Dobbins was an artist at the Marshall Space Flight Center. Dobbins illustrated many iconic images of the Apollo era, including this cutaway illustration of the Saturn V command module (CM) configuration. The CM included some of the most complex equipment ever sent into space at the time. The three astronaut couches were surrounded by instrument pane...
这张插图显示了NASA在太空中的NuSTAR X射线望远镜。两个笨重的部件由一个33英尺（10米）的结构隔开，该结构称为可展开桅杆或吊杆。光在桅杆的一端收集，并沿桅杆聚焦，然后撞击另一端的探测器。 影像来源：NASA/JPL-Caltech 近10年来，NASA的NuSTAR（核子光谱望远镜阵列）X射线太空天文台一直在研究宇宙中一些能量最高的物体，比如碰撞的死恒星和吞噬热气体的巨大黑洞。在这段时间里，科学家们不得不处理从天文台侧面泄漏的杂散光，这可能会干扰观测，就像外部噪音会淹没电话一样。 但现在，团队成员已经知道如何利用散乱的X射线来了解NuSTAR外围视觉中的物体，同时也进行正常的目标观测。这一进展有可能使核星提供的洞见成倍增加。《天体物理学杂志》上的一篇新科学论文描述了首次使用NuSTAR的杂散光观测来了...
2022年3月1日 Dueling Bands in the Night Image Credit & Copyright: Jeff Dai (TWAN) Explanation: What are these two bands in the sky? The more commonly seen band is the one on the right and is the central band of our Milky Way galaxy. Our Sun orbits in the disk of this spiral galaxy, so that from inside, this disk appears as a band of comparable brightness a...
Astronaut Victor Glover was assigned to the first mission to the International Space Station onboard SpaceX’s Crew Dragon, during an event on Friday, Aug. 3, 2018, at NASA’s Johnson Space Center in Houston, Texas. Other astronauts assigned to crew the first flight tests and missions of the Boeing CST-100 Starliner and SpaceX Crew Dragon also were announced d...