冥王星的夜晚
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NASA的新视野号探测到柯伊伯带延伸的尘埃迹象
NASA的新视野号宇宙飞船的最新观测结果表明，柯伊伯带——太阳系广阔而遥远的外围区域，由成千上万颗冰冷的岩石行星组成——可能比我们想象的要延伸得更远。
冥王星的真实色泽
2024年1月28日 Pluto in True Color Image Credit: NASA, JHU APL, SwRI; Processing: Alex Parker Explanation: What color is Pluto, really? It took some effort to figure out. Even given all of the images sent back to Earth when the robotic New Horizons spacecraft sped past Pluto in 2015, processing these multi-spectral frames to approximate what the human eye would see was challenging. The result featured here, released three years after the raw data was acquired by New Horizons, is the highest resolution true color image of Pluto ever taken. Visible in the image is the light-colored, heart-shaped, Tombaugh Regio, with the unexpectedly smooth Sputnik Planitia, made of frozen nitrogen, filling its western lobe. New Horizons found the dwarf planet to have a surprisingly complex surface…
冥王星的北部
2023年8月18日 Northern Pluto Image Credit: NASA, Johns Hopkins Univ./APL, Southwest Research Institute Explanation: Gaze across the frozen canyons of northern Pluto in this contrast enhanced color scene. The image data used to construct it was acquired in July 2015 by the New Horizons spacecraft as it made the first reconnaissance flight through the remote Pluto system six billion kilometers from the Sun. Now known as Lowell Regio, the region was named for Percival Lowell, founder of the Lowell Observatory. Also famous for his speculation that there were canals on Mars, Lowell started the search that ultimately led to Pluto’s discovery in 1930 by Clyde Tombaugh. In this frame Pluto’s North Pole is above and left of center. The pale bluish floor of the broad canyon…
所有人都在关注冰巨星
NASA的新视野号航天器计划在今年秋天从太阳系外围的遥远位置观测天王星和海王星，任务团队正在邀请全球业余天文爱好者一起参与，同时观测这两颗冰巨星，为太空科学做出真正的贡献。
新视野号的红外图像
NASA’s New Horizons spacecraft captured this high-resolution enhanced color view of Charon, Pluto’s largest moon, just before closest approach on July 14, 2015. The image combines blue, red, and infrared images taken by the spacecraft’s Ralph/Multispectral Visual Imaging Camera (MVIC); the colors are processed to best highlight the variation of surface properties across Charon. New Horizons conducted a six-month-long reconnaissance flyby study of Pluto and its moons in summer 2015, helping us understand worlds at the edge of our solar system, then venturing deeper into the distant, mysterious Kuiper Belt – a relic of solar system formation. The spacecraft is now more than 5 billion miles from Earth and uses machine-learning AI software to make searches beyond the Kuiper Belt much faster and more productive….
冥卫一
2023年6月3日 Charon: Moon of Pluto Image Credit: NASA, Johns Hopkins Univ./APL, Southwest Research Institute, U.S. Naval Observatory Explanation: A darkened and mysterious north polar region known to some as Mordor Macula caps this premier high-resolution view. The portrait of Charon, Pluto’s largest moon, was captured by New Horizons near the spacecraft’s closest approach on July 14, 2015. The combined blue, red, and infrared data was processed to enhance colors and follow variations in Charon’s surface properties with a resolution of about 2.9 kilometers (1.8 miles). A stunning image of Charon’s Pluto-facing hemisphere, it also features a clear view of an apparently moon-girdling belt of fractures and canyons that seems to separate smooth southern plains from varied northern terrain. Charon is 1,214 kilometers (754 miles) across….
蓝色的告别
A blue halo glows around Pluto’s receding crescent in this parting image taken by NASA’s New Horizons spacecraft on July 14, 2015. At the time of this shot, New Horizons was 120,000 miles (200,000 kilometers) away from Pluto. Shown in approximate true color, the picture was constructed from a mosaic of six black-and-white images from the Long Range Reconnaissance Imager, with color added from a lower resolution Ralph/Multispectral Visible Imaging Camera color image. Scientists believe the haze is a smog resulting from the action of sunlight on methane and other molecules in Pluto’s atmosphere. This reaction produces a complex mixture of hydrocarbons that accumulate into small haze particles which scatter blue light. As they settle down through the atmosphere, the haze particles form numerous intricate…
冥王星的夜面
2022年3月26日 Pluto at Night Image Credit: NASA, Johns Hopkins Univ./APL, Southwest Research Institute Explanation: The night side of Pluto spans this shadowy scene. In the stunning spacebased perspective the Sun is 4.9 billion kilometers (almost 4.5 light-hours) behind the dim and distant world. It was captured by far flung New Horizons in July of 2015 when the spacecraft was at a range of some 21,000 kilometers from Pluto, about 19 minutes after its closest approach. A denizen of the Kuiper Belt in dramatic silhouette, the image also reveals Pluto’s tenuous, surprisingly complex layers of hazy atmosphere. Near the top of the frame the crescent twilight landscape includes southern areas of nitrogen ice plains now formally known as Sputnik Planitia and rugged mountains of water-ice in…
冥王星的色泽强化影像
2021年8月1日 Pluto in Enhanced Color Image Credit: NASA, Johns Hopkins Univ./APL, Southwest Research Inst. Explanation: Pluto is more colorful than we can see. Color data and high-resolution images of our Solar System’s most famous dwarf planet, taken by the robotic New Horizons spacecraft during its flyby in 2015 July, have been digitally combined to give an enhanced-color view of this ancient world sporting an unexpectedly young surface. The featured enhanced color image is not only esthetically pretty but scientifically useful, making surface regions of differing chemical composition visually distinct. For example, the light-colored heart-shaped Tombaugh Regio on the lower right is clearly shown here to be divisible into two regions that are geologically different, with the leftmost lobe Sputnik Planitia also appearing unusually smooth. After…