朱诺探测到的木星磁场

朱诺探测到的木星磁场

ByNASA中文

2020 February 25 Jupiter’s Magnetic Field from Juno Video Credit: NASA, JPL-Caltech, Harvard U., K. Moore et al. Explanation: How similar is Jupiter’s magnetic field to Earth’s? NASA’s robotic Juno spacecraft has found that Jupiter’s magnetic field is surprisingly complex, so that the Jovian world does not have single magnetic poles like our Earth. A snapshot of Jupiter’s magnetic field at one moment in time, as animated from Juno data, appears in the featured video. Red and blue colors depict cloud-top regions of strong positive (south) and negative (north) magnetic fields, respectively. Surrounding the planet are imagined lines of constant magnetic field strength. The first sequence of the animated video starts off by showing what appears to be a relatively normal dipole field, but soon…

木星的赤道

木星的赤道

ByNASA中文

Thick white clouds are present in this JunoCam image of Jupiter’s equatorial zone. These clouds complicate the interpretation of infrared measurements of water. At microwave frequencies, the same clouds are transparent, allowing Juno’s Microwave Radiometer to measure water deep into Jupiter’s atmosphere. The image was acquired during Juno’s flyby of the gas giant on Dec. 16, 2017. JunoCam’s raw images are available for the public to peruse and process into image products at: https://missionjuno.swri.edu/junocam/processing. Image Credit: NASA/JPL-Caltech/SwRI/MSSS/Kevin M. Gill 在这张木星赤道区域的JunoCam图像中出现了厚厚的白云。这些云使得对水的红外线测量水变得复杂。在微波频率下，相同的云层是透明的，这使朱诺的微波辐射计能够测量木星大气深处的水。这张照片是在2017年12月16日“朱诺”号飞越木星时拍摄的。 JunoCam的原始图像可通过以下网址向公众浏览并加工成图像产品：https://missionjuno.swri.edu/junocam/processing。 影像来源：NASA/JPL-Caltech/SwRI/MSSS/Kevin M. Gill

NASA的朱诺号宇宙飞船与木星进行了近距离接触

NASA的朱诺号宇宙飞船与木星进行了近距离接触

ByNASA中文

A multitude of swirling clouds in Jupiter’s dynamic North North Temperate Belt is captured in this image from NASA’s Juno spacecraft. Appearing in the scene are several bright-white “pop-up” clouds as well as an anticyclonic storm, known as a white oval. This color-enhanced image was taken at 4:58 p.m. EDT on Oct. 29, 2018, as the spacecraft performed its 16th close flyby of Jupiter. At the time, Juno was about 4,400 miles from the planet’s cloud tops, at a latitude of approximately 40 degrees north. Citizen scientists Gerald Eichstädt and Seán Doran created this image using data from the spacecraft’s JunoCam imager. Image Credit: Enhanced image by Gerald Eichstädt and Sean Doran (CC BY-NC-SA) based on images provided courtesy of NASA/JPL-Caltech/SwRI/MSSS 这张由NASA朱诺号宇宙飞船拍摄的照片显示，在木星活跃的北北温带有大量的旋涡云。画面中出现了几朵明亮的白色“弹出”云，以及一场被称为白色椭圆形的反气旋风暴。 这张彩色增强图片拍摄于美国东部时间10月29日下午4点58分，当时飞船正在对木星进行第16次近距离飞越。当时，朱诺号距离木星云层顶约4400英里，所在纬度约为北纬40度。 公民科学家GeraldEichstädt和SeánDoran使用飞船JunoCam成像仪的数据创建了这张图像。 影像来源：由Gerald…

激荡翻腾的木星云层

激荡翻腾的木星云层

ByNASA中文

2020 January 6 Tumultuous Clouds of Jupiter Image Credit & License: NASA/JPL-Caltech/SwRI/MSSS; Processing: Kevin M. Gill Explanation: Some cloud patterns on Jupiter are quite complex. The featured tumultuous clouds were captured in May by NASA’s robotic Juno spacecraft currently orbiting our Solar System’s largest planet. The image was taken when Juno was only about 15,000 kilometers over Jupiter’s cloud tops, so close that less than half of the giant planet is visible. The rough white clouds on the far right are high altitude clouds known as pop-up clouds. Juno’s mission, now extended into 2021, is to study Jupiter in new ways. Among many other things, Juno has been measuring Jupiter’s gravitational field, finding surprising evidence that Jupiter may be mostly a liquid. 激荡翻腾的木星云层 影像提供与许可：NASA/JPL-Caltech/SwRI/MSSS;处理：Kevin M….

木星南极发现了一个新的气旋

木星南极发现了一个新的气旋

ByNASA中文

朱诺号在木星南极右下方的位置看到一个新的，小的气旋。 Credits: NASA/JPL-Caltech/SwRI/ASI/INAF/JIRAM 为了直观感受气旋的大小，NASA在中央气旋上放置了美国地图，新发现的气旋上放置了德克萨斯州的地图。 Credits: NASA/JPL-Caltech/SwRI/ASI/INAF/JIRAM 2019年11月3日，在朱诺号第22次飞越木星南极上空时，NASA科学家在木星南极发现了一个新的气旋，当时朱诺号位于木星云顶上方大约3500公里。 朱诺号木星探测器于2016年7月首次抵达木星，它的红外和可见光相机在木星北极发现了9个巨大气旋，南极发现了6个。这是否和地球上的气旋一样，过几周就消失掉呢？ 2019年12月3日，木星南极合成图，由朱诺号相机在可见光下拍摄。 Credits: NASA/JPL-Caltech/SwRI/MSSS/JunoCam [rml_read_more] 在这之前，朱诺号每次飞越木星南极上空时，都能看到五个风暴以五边形的形式环绕着一个中心风暴，整个系统似乎很稳定。 2017年2月2日，这是朱诺号第三次飞越木星南极拍摄到的红外图像，显示木星南极有6个气旋。 Credits: NASA/JPL-Caltech/SwRI/ASI/INAF/JIRAM 2017年2月2日至2019年11月3日，朱诺号红外相机拍摄到的木星南极气旋。 Credits: NASA/JPL-Caltech/SwRI/MSSS/JunoCam 参考： https://www.nasa.gov/feature/jpl/nasas-juno-navigators-enable-jupiter-cyclone-discovery

回眸

回眸

ByNASA中文

Just after its close flyby of Jupiter on Nov. 3, 2019, NASA’s Juno spacecraft caught this striking view of Jupiter’s southern hemisphere as the spacecraft sped away from the giant planet. This image captures massive cyclones near Jupiter’s south pole, as well as the chaotic clouds of the folded filamentary region — the turbulent area between the orange band and the brownish polar region. When this image was taken, Juno was traveling at about 85,000 mph (137,000 kilometers per hour) relative to the planet. A little more than an hour earlier — at the point of closest approach to the cloud tops — the spacecraft reached speeds relative to Jupiter in excess of 130,000 mph (209,000 kilometers per hour). Citizen scientist Ali Abbasi created this…

木星的云顶:由高到低

木星的云顶:由高到低

ByGotthew

This view from NASA’s Juno spacecraft captures colorful, intricate patterns in a jet stream region of Jupiter’s northern hemisphere known as “Jet N3.” Jupiter’s cloud tops do not form a simple, flat surface. Data from Juno helped scientists discover that the swirling bands in the atmosphere extend deep into the planet, to a depth of about 1,900 miles (3,000 kilometers). At center right, a patch of bright, high-altitude “pop-up” clouds rises above the surrounding atmosphere. Citizen scientist Gerald Eichstädt created this enhanced-color image using data from the spacecraft’s JunoCam imager. The original image was taken on May 29, 2019, at 1:01 a.m. PDT (4:01 a.m. EDT) as the Juno spacecraft performed its 20th close flyby of Jupiter. At the time the image was taken, the…

朱诺号影像：木卫一的影子

朱诺号影像：木卫一的影子

ByGotthew

2019 October 7 Io Eclipse Shadow on Jupiter from Juno Image Credit & License: NASA/JPL-Caltech/SwRI/MSSS; Processing: Kevin M. Gill Explanation: What’s that dark spot on Jupiter? It’s the shadow of Jupiter’s most volcanic moon Io. Since Jupiter shines predominantly by reflected sunlight, anything that blocks that light leaves a shadow. If you could somehow be in that shadow, you would see a total eclipse of the Sun by Io. Io’s shadow is about 3600 kilometers across, roughly the same size as Io itself — and only slightly larger than Earth’s Moon. The featured image was taken last month by NASA’s robotic Juno spacecraft currently orbiting Jupiter. About every two months, Juno swoops close by Jupiter, takes a lot of data and snaps a series of…

近木轨道11：掠过木星

近木轨道11：掠过木星

ByNASA中文

2019 September 8 Perijove 11: Passing Jupiter Video Credit & License: NASA, Juno, SwRI, MSSS, Gerald Eichstadt; Music: Moonlight Sonata (Ludwig van Beethoven) Explanation: Here comes Jupiter! NASA’s robotic spacecraft Juno is continuing on its 53-day, highly-elongated orbits around our Solar System’s largest planet. The featured video is from perijove 11 in early 2018, the eleventh time Juno has passed near Jupiter since it arrived in mid-2016. This time-lapse, color-enhanced movie covers about four hours and morphs between 36 JunoCam images. The video begins with Jupiter rising as Juno approaches from the north. As Juno reaches its closest view — from about 3,500 kilometers over Jupiter’s cloud tops — the spacecraft captures the great planet in tremendous detail. Juno passes light zones and dark belt…

木星上的深渊

木星上的深渊

ByNASA中文

NASA’s Juno spacecraft captured this view of an area within a Jovian jet stream showing a vortex that has an intensely dark center. Nearby, other features display bright, high altitude clouds that have puffed up into the sunlight. The color-enhanced image was taken at 12:55 a.m. PDT (3:55 a.m. EDT) on May 29, 2019, as the spacecraft performed its 20th science flyby of Jupiter. At the time, Juno was about 9,200 miles (14,800 kilometers) from the planet’s cloud tops, above approximately 52 degrees north latitude. Citizen scientists Gerald Eichstädt and Seán Doran created and named this image using data from the spacecraft’s JunoCam imager. JunoCam’s raw images are available for the public to peruse and process into image products at https://missionjuno.swri.edu/junocam/processing. More information about Juno…