2021年11月22日 Lunar Eclipse over a Skyscraper Image Credit & Copyright: Yuri Beletsky (Carnegie Las Campanas Observatory, TWAN) Explanation: Why is the Moon on top of this building? Planning. It took the astrophotographer careful planning — including figuring out exactly where to place the […]
2021年11月21日 Introducing Comet Leonard Image Credit & Copyright: Dan Bartlett Explanation: Here comes Comet Leonard. Comet C/2021 A1 (Leonard) was discovered as a faint smudge in January 2021 when it was out past Mars — but its orbit will take the giant shedding ice-ball into the inner Sol
2021年11月20日 An Almost Total Lunar Eclipse Image Credit & Copyright: Robert Fedez Explanation: Predawn hours of November 19 found the Moon in partly cloudy skies over Cancun, Mexico. Captured in this telephoto snapshot, the lunar disk is not quite entirely immersed in Earth’s dark umbral s
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
2021年11月19日 NGC 281: Starless with Stars Image Credit & Copyright: Wido Oerlemans – X-ray: Chandra, Infrared: Spitzer Explanation: In visible light the stars have been removed from this narrow-band image of NGC 281, a star forming region some 10,000 light-years away toward the constellati
2021年9月4日，NASA毅力号火星车上的Mastcam-Z仪器的视频拍摄到了该机构的机智号火星直升机的第13次飞行的特写镜头。 视频来源：NASA/JPL-Caltech/ASU/MSSS 最近9月飞行的下行图像，让火星车成像团队将一段旋翼飞行器表现近乎完美的视频整合在一起。 NASA毅力号火星车9月4日拍摄的机智号火星直升机第13次飞行的视频，提供了迄今为止最详细的旋翼机的运行情况。 机智号目前正在为其第16次飞行做准备，计划不早于11月20日星期六进行，但160.5秒的第13次飞行是机智号最复杂的飞行之一。它涉及飞入“Séítah”地质特征内的各种地形，并为火星车团队从多个角度拍摄露头
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
2021年11月18日 Full Moonlight Image Credit & Copyright: Zhengjie Wu and Jeff Dai (TWAN) Explanation: A photographer in silhouette stands in bright moonlight as the Full Moon rises in this well-planned telephoto image. Of course, the Full Moon is normally the brightest lunar phase. But on November
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
2021年11月17日 NGC 3314: When Galaxies Overlap Image Credit: NASA, ESA, Hubble; Processing & Copyright: William Ostling (The Astronomy Enthusiast) Explanation: Why doesn’t the nearby galaxy create a gravitational lensing effect on the background galaxy? It does, but since both galaxies are s
