保护地球，探索宇宙，发现文明
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 Rec...
2023年2月22日 Our Increasingly Active Sun Image Credit & Copyright: Mehmet Ergün Explanation: Our Sun is becoming a busy place. Only two years ago, the Sun was emerging from a solar minimum so quiet that months would go by without even a single sunspot. In contrast, already this year and well ahead of schedule, our Sun is unusually active, already nearing ...
这段由NASA哈勃太空望远镜拍摄的延时视频显示了一颗名为SN 2018gv的超新星的光线逐渐减弱。ULTRASAT不仅会观测到这种宇宙爆炸的后期衰减，还会观测到早期变亮。 影像来源：NASA, ESA, and A. Riess (STScI/JHU) and the SH0ES team; 致谢：M. Zamani (ESA/Hubble) NASA将发射以色列的第一个太空望远镜任务，即紫外瞬态天文卫星（ULTRASAT）。ULTRASAT是一个拥有大视场的紫外天文台，它将调查宇宙中短时间事件的秘密，例如超新星爆炸和中子星合并。 由以色列航天局和魏茨曼科学研究所领导的ULTRASAT计划于2026年初发射到地球静止轨道。除了提供发射服务，NASA还将参与这次任务的科学项目。 “我们很自豪能加入这一合作伙伴关系...
Jamesa Stokes’ path to being an engineer at NASA started out on a completely different road. While she loved and excelled at math and science, she was also passionate about studio art, her first major in college. But knowing that science can also be a creative pursuit, she switched to physics and embarked on a journey to NASA when she reached grad scho...
2023年2月21日 Comet ZTF over Yosemite Falls Image Credit & Copyright: Tara Mostofi Explanation: They are both falling. The water in Yosemite Falls, California, USA, is falling toward the Earth. Comet ZTF is falling toward the Sun. This double cosmic cascade was captured late last month as fading Comet C/2022 E3 (ZTF) had just passed its closest to planet E...
2023年2月20日 NGC 1850: Not Found in the Milky Way Image Credit: NASA, ESA and P. Goudfrooij (STScI); Processing: M. H. Özsaraç (Türkiye Astronomi Derneği) Explanation: There is nothing like this ball of stars in our Milky Way Galaxy. This is surprising because, at first glance, this featured image by the Hubble Space Telescope suggests that star cluster NGC 18...
2023年2月19日 Seven Dusty Sisters in Infrared Image Credit: NASA, WISE, IRSA, Processing & Copyright: Francesco Antonucci Explanation: Is this really the famous Pleiades star cluster? Known for its iconic blue stars, the Pleiades is shown here in infrared light where the surrounding dust outshines the stars. Here three infrared colors have been mapped into...
Mission Specialist Andrey Fedyaev, Pilot Warren “Woody” Hoburg, Commander Stephen Bowen, and Mission Specialist Sultan Alnedayi, the SpaceX Crew-6 mission, pose for a photo atop an emergency egress vehicle at NASA’s Kennedy Space Center in Florida. Crews would use the vehicle to quickly leave the launch area in case of an emergency. The launch br...
The Himalayan peaks are pictured in this oblique photograph from the International Space Station as it orbited 260 miles above central China on Feb. 8, 2023. Humans have taken over 4 million photographs from space. Crew photography can be used to study changes on Earth’s surface over time as well as significant weather events. See more images from the Space ...
2023年2月18日 Barred Spiral Galaxy NGC 1365 from Webb Image Credit: NASA, ESA, CSA, Janice Lee (NOIRLab) – Processing: Alyssa Pagan (STScI) Explanation: A mere 56 million light-years distant toward the southern constellation Fornax, NGC 1365 is an enormous barred spiral galaxy about 200,000 light-years in diameter. That’s twice the size of our own b...