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1990年10月6日，“发现”号航天飞机在佛罗里达州肯尼迪航天中心发射了ESA-NASA联合深空任务“尤利西斯”。
尤利西斯号建于德国，旨在研究受太阳及其磁场影响的空间区域——日光层。它的主要目标是对太阳两极上空的未探测区域进行首次测量。由于这个原因，它在椭圆日心轨道上运行，这使得它高出黄道平面，每个轨道持续6.2年。
为了进入这个特殊的轨道，809磅（367千克）的尤利西斯号必须借助一堆固体火箭发动机。它们与主航天器一起被装载到航天飞机的有效载荷舱。他们从发现号释放后被点燃。
利用九套仪器，研究领域包括研究太阳风的性质和行为，测量太阳磁场，探测银河宇宙射线，以及……
The joint ESA-NASA deep-space mission Ulysses was launched by the Space Shuttle Discovery from the Kennedy Space Center in Florida on October 6, 1990.
Built in Germany, Ulysses was designed to study the heliosphere—the region of space influenced by the Sun and its magnetic field. Its primary goal was to make the first-ever measurements of the unexplored region of space above the Sun's poles. For this reason, it operated in an elliptical heliocentric orbit that took it high above the ecliptic plane, where each orbit lasted 6.2 years.
To get into this special orbit, the 809lb (367kg) Ulysses had to be helped by a stack of solid rocket motors. These were loaded into the shuttle payload bay along with the main spacecraft. They were ignited once released from Discovery.
With nine sets of instruments, the areas of investigation included looking into the properties and behavior of the solar wind, measuring the Sun's magnetic field, detecting galactic cosmic rays, and...