保护地球，探索宇宙，发现文明
Martin Luther King, Jr.’s birthplace, Atlanta, Georgia, is seen on January 20, 2013, in this image from the International Space Station as it flew approximately 240 miles above the city. NASA honors Dr. King’s life and legacy by expanding mission equity, engaging in public service, and sharing knowledge for the benefit of all humanity. Image Credit: NASA 201...
2023年1月15日 M1: The Crab Nebula from Hubble Image Credit: NASA, ESA, Hubble, J. Hester, A. Loll (ASU) Explanation: This is the mess that is left when a star explodes. The Crab Nebula, the result of a supernova seen in 1054 AD, is filled with mysterious filaments. The filaments are not only tremendously complex, but appear to have less mass than expelled in th...
2023年1月14日 Perihelion Sun 2023 Image Credit & Copyright: Peter Ward (Barden Ridge Observatory) Explanation: Perihelion for 2023, Earth’s closest approach to the Sun, was on January 4 at 16:17 UTC. That was less than 24 hours after this sharp image of the Sun’s disk was recorded with telescope and H-alpha filter from Sydney, Australia, planet...
2023年1月13日 Young Star Cluster NGC 346 Image Credit: Science – NASA, ESA, CSA, Olivia C. Jones (UK ATC), Guido De Marchi (ESTEC), Margaret Meixner (USRA) Processing – Alyssa Pagan (STScI), Nolan Habel (USRA), Laura Lenkić (USRA), Laurie E. U. Chu (NASA Ames) Explanation: The most massive young star cluster in the Small Magellanic Cloud is NGC 346,...
NASA astronaut and Expedition 68 Flight Engineer Frank Rubio is all smiles as he observes the behavior of a free-flying water bubble inside the International Space Station’s (ISS) Kibo laboratory module on Oct. 10, 2022. Fluid physics is the study of liquid and gas motion and the effects of forces on liquids and gases. The International Space Station’s...
2023年1月12日 Stardust in Perseus Image Credit & Copyright: Jack Groves Explanation: This cosmic expanse of dust, gas, and stars covers some 6 degrees on the sky in the heroic constellation Perseus. At upper left in the gorgeous skyscape is the intriguing young star cluster IC 348 and neighboring Flying Ghost Nebula with clouds of obscuring interstellar du...
NGC 346是附近星系中最活跃的恒星形成区域之一，充满了神秘感。现在，随着NASA的詹姆斯·韦伯太空望远镜的新发现的新发现，它不再那么神秘了。 NCG 346位于小麦哲伦星云（SMC），一个靠近银河系的矮星系。与银河系相比，SMC包含的比氢或氦（天文学家称之为金属）更重的元素浓度更低。由于太空中的尘埃颗粒主要由金属组成，科学家们预计尘埃数量会很少，而且很难探测到。韦伯的新数据显示了相反的情况。 NGC 346是一个动态星团，位于20万光年之外的一个星云内，这张照片是由NASA的詹姆斯·韦伯太空望远镜近红外照相机(NIRCam)拍摄。韦伯揭示了比先前预期的更多的构造块的存在，不仅是恒星，还有行星，以充满尘埃和氢的云的形式存在。图中的羽状气体和弧形气体包含两种类型氢。粉红色气体代表带电的氢，其温度通常高达约10,...
The Artemis I Orion capsule is secured on a platform inside the Multi-Payload Processing Facility (MPPF) at Kennedy Space Center in Florida in this image from Jan. 6, 2023. Orion splashed down on Dec. 11, 2022 and was transported back to Kennedy for de-servicing inside the MPPF. During Orion’s 25.5-day trip beyond the Moon and back, it flew farther than any ...
NASA astronaut and Expedition 68 Flight Engineer Nicole Mann peers through one of the seven windows in the cupola, the International Space Station’s “window to the world” on Jan. 2, 2023. Mann displays the U.S. flag inside the cupola in the window next to her. The cupola is designed for watching operations outside the station such as roboti...
2023年1月11日 Spiral Aurora over Iceland Image Credit & Copyright: Stefano Pellegrini Explanation: The scene may look like a fantasy, but it’s really Iceland. The rock arch is named Gatklettur and located on the island’s northwest coast. Some of the larger rocks in the foreground span a meter across. The fog over the rocks is really moving wave...