标签: 太阳

太空站凌越活跃的太阳

2022年4月11日 A Space Station Crosses a Busy Sun Image Credit & Copyright: Wang Letian (Eyes at Night) Explanation: Typically, the International Space Station is visible only at night. Slowly drifting across the night sky as it orbits the Earth, the International Space Station (ISS) can be seen as a bright spot several times a year from many locations. The...

土卫六甲烷海反射的阳光

2022年3月27日 Titan Seas Reflect Sunlight Image Credit: NASA, JPL-Caltech, U. Arizona, U. Idaho Explanation: Why would the surface of Titan light up with a blinding flash? The reason: a sunglint from liquid seas. Saturn’s moon Titan has numerous smooth lakes of methane that, when the angle is right, reflect sunlight as if they were mirrors. Pictured here ...

纪念有远见的太阳物理学家尤金·帕克

Dr. Eugene N. Parker, visionary of heliophysics and namesake of NASA’s Parker Solar Probe, has passed away. He was 94. As a young professor at the University of Chicago in the mid-1950s, Parker developed a mathematical theory that predicted the solar wind, the constant outflow of solar material from the Sun. Throughout his career, Parker revolutionized the f...

金星与三个紫外波段的太阳

2022年3月6日 Venus and the Triply Ultraviolet Sun Image Credit: NASA/SDO & the AIA, EVE, and HMI teams; Digital Composition: Peter L. Dove Explanation: This was a very unusual type of solar eclipse. Typically, it is the Earth’s Moon that eclipses the Sun. In 2012, though, the planet Venus took a turn. Like a solar eclipse by the Moon, the phase of Ve...

观星指南(2022.03)

3月份的天空会发生什么?认识早晨的行星、最近的星团,还有自己动手寻找系外行星。

太阳轨道飞行器拍摄的创纪录日珥

2022年3月2日 Record Prominence Imaged by Solar Orbiter Image Credit: Solar Orbiter, EUI Team, ESA & NASA; h/t: Bum-Suk Yeom Explanation: What’s happened to our Sun? Last month, it produced the largest prominence ever imaged together with a complete solar disk. The record image, featured, was captured in ultraviolet light by the Sun-orbiting Solar Orb...

新的太阳任务,以帮助NASA更好地了解地日环境

太阳发出中等水平的太阳耀斑,并于美国东部时间2015年10月1日晚上8点13分达到顶峰,美国国家航空航天局(NASA)的太阳动力学天文台(SDO)捕捉到了这一事件的图像。 来源:NASA/SDO NASA已选定两项科学任务:多缝隙太阳探测器(MUSE)任务和HelioSwarm任务,以帮助进一步提高人类对太阳活动、日地关系以及不断变化的空间环境的理解。这两项任务有助于加深人类对宇宙的理解,并提供关键信息以帮助保护宇航员、卫星和通信信号,例如全球定位系统(GPS)。 NASA总部负责科学事务的副局长托马斯·祖尔布钦(Thomas Zurbuchen)表示 :“MUSE任务和HelioSwarm任务将为太阳大气和空间天气提供更为深入的新见解。这两项任务不仅扩展了NASA其他太阳物理学任务的科学内容,还为了解太阳奥秘...

形似埃菲尔铁塔的日珥

2022年2月16日 Eiffel Tower Prominence on the Sun Video Credit & Copyright: Hawk Wolinski Explanation: What’s that on the Sun? Although it may look like a flowing version of the Eiffel Tower, it is a solar prominence that is actually much bigger — about the height of Jupiter. The huge prominence emerged about ten days ago, hovered over the Sun&#...