NGC 6891 is a bright, asymmetrical planetary nebula in the constellation Delphinus, the Dolphin. This Hubble image reveals a wealth of structure, including a spherical outer halo that is expanding faster than the inner nebula, and at least two ellipsoidal shells that are orientated differently. The […]
In a first, astronomers may have seen light from the merger of two black holes, providing opportunities to learn about these mysterious dark objects. 天文学家们首次看到了来自两个黑洞合并产生的光线，为了解这些神秘的黑暗物体提供了机会。 This artist’s concept shows a supermassive black hole surrounded by a disk of gas. Embedded in this d
Mounded, luminous clouds of gas and dust glow in this Hubble image of a Herbig-Haro object known as HH 45. Herbig-Haro objects are a rarely seen type of nebula that occurs when hot gas ejected by a newborn star collides with the gas and dust around it at hundreds of miles per second, creating bright
The Double Asteroid Redirection Test (DART), which will help determine if intentionally crashing a spacecraft into an asteroid is an effective way to change its course, is scheduled to launch no earlier than 1:21 a.m. EST Wednesday, Nov. 24 (10:21 p.m. PST Tuesday, Nov. 23) on a SpaceX Falcon 9 rock
The Flame Nebula, also called NGC 2024, is a large star-forming region in the constellation Orion that lies about 1,400 light-years from Earth. It’s a portion of the Orion Molecular Cloud Complex, which includes such famous nebulae as the Horsehead Nebula and Orion Nebula. This image focuses on the
NASA astronaut Victor Glover speaks with students about his time aboard the International Space Station, Thursday, Nov. 18, 2021, at Ben’s Chili Bowl in Washington. Students from Cardozo Educational Campus, Friendship Technology Preparatory High School, McKinley Technical High School, Phelps High Sc
Looking much like ghosts, a pair of U.S. spacesuits are pictured inside the International Space Station’s Quest airlock ready for an upcoming spacewalk to be conducted by NASA astronauts Thomas Marshburn and Kayla Barron. 看上去很像幽灵，图中一对美国宇航服在国际空间站的探索气闸内，为美国宇航局宇航员托马斯·马什本和凯拉·巴伦即将进行的太空行走做准备。 Image
Stars are born from clouds of gas and dust that collapse under their own gravitational attraction. As the cloud collapses, a dense, hot core forms and begins gathering dust and gas, creating an object called a “protostar.” 恒星是由气体云和尘埃在自身引力作用下坍缩而形成。随着云团坍缩，会形成一个致密、炽热的核心，并开始聚集尘埃和气体，形成一个称为“原恒星”的物体。 This
As the International Space Station orbits the Earth, the crew makes observations of the universe and our home planet. This image taken from the space station shows the blue-green waters around the Bahamas, as shown in Space Station highlights for the week of Nov. 8, 2021. 当国际空间站绕地球运行时，宇航员对宇宙和我们的地球进行
Chas Hoff, visited the Space Environments Facility in 2019 with a group of safety and mission assurance experts prior to testing of the Orion spacecraft. Credits: NASA 2019年于2019年与一组安全和任务保证专家一起参观了空间环境设施，随后对猎户座航天器进行了测试。 影像来源：NASA When Chas Hoff’s children started asking questions about his Native Ame
