NASA·每日一图

In this image from June 2002, astronaut Franklin R. Chang-Diaz works with a grapple fixture during a spacewalk on the STS-111 mission to perform work on the International Space Station. The first spacewalk of the mission began with the installation of a power and data grapple fixture (PDGF) for the station’s robotic arm on the complex’s P6 truss. The fixture will allow the robotic arm to grip the P6 truss for future station assembly operations. Astronauts Chang-Diaz and Philippe Perrin (with French space agency, CNES) went on to install the new fixture about halfway up the P6 truss, the vertical structure that currently supports the station’s set of large U.S. solar arrays. Chang-Diaz is Hispanic of Costa Rican descent. He is also a veteran of…

This latest image of Jupiter, taken by NASA’s Hubble Space Telescope on Aug. 25, 2020, was captured when the planet was 406 million miles from Earth. Hubble’s sharp view is giving researchers an updated weather report on the monster planet’s turbulent atmosphere, including a remarkable new storm brewing, and a cousin of the famous Great Red Spot region gearing up to change color – again. A unique and exciting detail of Hubble’s snapshot appears at mid-northern latitudes as a bright, white, stretched-out storm traveling around the planet at 350 miles per hour (560 kilometers per hour). This single plume erupted on Aug. 18, 2020 – and ground-based observers have discovered two more that appeared later at the same latitude. While it’s common for storms to…

NASA’s Aqua satellite captured this true-color image of the United States on Sep. 15, 2020, showing the fires in the West, the smoke from those fires drifting over the country, several hurricanes converging from different angles, and Hurricane Sally making landfall. Red points in the west note areas that are significantly higher in temperature than the areas around it and are indicative of fires. These points are most pronounced up and down the West Coast, but dot the country from coast-to-coast as well. In addition, in this image are captured four hurricanes/tropical storms in both the East and the West. On the left hand side is Karina which is moving away from the Baja California area. Hurricane Sally, seen in the middle of the image,…

During her first mission to space and to the International Space Station, Kate Rubins became the first person to sequence DNA in space. During her upcoming mission, Rubins will work on a cardiovascular experiment that builds on an investigation she completed during her first space mission and conduct research using the space station’s Cold Atom Lab. She’ll also be aboard the station for the arrival of NASA’s SpaceX Crew-1 mission and Boeing Orbital Flight Test-2. Rubins’ launch is planned for Oct. 14 aboard the Soyuz MS-17 spacecraft from the Baikonur Cosmodrome in Kazakhstan with her Expedition 63/64 crewmates, Roscosmos cosmonauts Sergey Ryzhikov and Sergey Kud-Sverchkov. On Nov. 2, Rubins will celebrate with her crewmates the 20th anniversary of continuous human habitation of the space station…

Many colorful stars are packed close together in this image of the globular cluster NGC 1805, taken by the NASA/ESA Hubble Space Telescope. This tight grouping of thousands of stars is located near the edge of the Large Magellanic Cloud, a satellite galaxy of our own Milky Way. The stars orbit closely to one another, like bees swarming around a hive. In the dense center of one of these clusters, stars are 100 to 1,000 times closer together than the nearest stars are to our Sun, making planetary systems around them unlikely. The striking difference in star colors is illustrated beautifully in this image, which combines different types of light: blue stars, shining brightest in near-ultraviolet light, and red stars, illuminated in red and near-infrared….

The Nancy Grace Roman Space Telescope’s primary mirror, which will collect and focus light from cosmic objects near and far, has been completed. Using this mirror, Roman will capture stunning space vistas with a field of view 100 times greater than Hubble images. Roman will peer through dust and across vast stretches of space and time to study the universe using infrared light, which human eyes can’t see. The amount of detail these observations will reveal is directly related to the size of the telescope’s mirror, since a larger surface gathers more light and measures finer features. In this image, the Roman Space Telescope’s primary mirror reflects an American flag. Image Credit: L3Harris Technologies 南茜·格蕾丝·罗曼太空望远镜的主镜已经完成，它将收集和聚焦远近宇宙物体的光线。利用这面镜子，罗曼太空望远镜将以比哈勃望远镜大100倍的视野捕捉令人惊叹的太空景象。 罗曼太空望远镜将透过尘埃和广阔的空间和时间，利用人眼看不到的红外光研究宇宙。这些观察结果所揭示的细节数量与望远镜镜面的大小直接相关，因为较大的镜面能收集更多的光线，并能测量出更精细的特征。 在这张图片中，罗曼太空望远镜的主镜反射了一面美国国旗。 图片来源:L3Harris Technologies