保护地球，探索宇宙，发现文明
The galaxy known as NGC 5907 stretches wide across this image. Appearing as an elongated line of stars and dark dust, the galaxy is categorized as a spiral galaxy just like our own Milky Way. In this new image from the NASA/ESA Hubble Space Telescope, we don’t see the beautiful spiral arms because we are viewing it edge-on, like looking at the rim of a plate...
2020 June 27 Eclipse under the ISS Image Credit: NASA ISS Expedition 63 Explanation: The dark shadow of the New Moon reached out and touched planet Earth on June 21. A high definition camera outside the International Space Station captured its passing in this snapshot from low Earth orbit near the border of Kazakhstan and China. Of course those along the Moo...
NASA、ESA和JAXA收集了大量从太空观测地球的数据，包括NASA-NOAA Suomi NPP卫星的“夜灯”数据，以跟踪世界对COVID-19大流行所带来的全球和局部变化的反应。这张照片显示的是旧金山湾区。 影像来源：NASA 为应对全球冠状病毒(COVID-19)大流行，美国航空航天局(NASA)、欧洲航天局(ESA)和日本宇宙航空研究开发机构(JAXA)联合使用其地球观测卫星数据的集体科学力量来记录全球环境和人类社会的变化。这些机构收集的大量信息现在只需要一根手指就可以得到。 这三个航天机构开展了前所未有的合作，共同创建了COVID-19地球观测仪表板，该仪表板将多种卫星数据记录与分析工具集成在一起，便于用户跟踪空气和水质、气候变化、经济活动和农业的变化。 COVID-19导致全球人类活动变化。一些水...
This composite image, made from six frames, shows the International Space Station, with a crew of five on board, in silhouette as it transits the Sun at roughly five miles per second, Wednesday, June 24, 2020, from Fredericksburg, Va. On board are Expedition 63 NASA astronauts Chris Cassidy, Douglas Hurley, Robert Behnken, and Roscosmos cosmonauts Anatoly Iv...
2020 June 26 Eclipse under the Bamboo Image Credit & Copyright: Somak Raychaudhury (Inter-University Centre for Astronomy & Astrophysics) Explanation: Want to watch a solar eclipse safely? Try looking down instead of up, though you might discover you have a plethora of images to choose from. For example, during the June 21st solar eclipse this conf...
On June 21, 2020, as the International Space Station orbited over Kazakhstan and into China, an external high-definition camera captured this picture of the solar eclipse shadowing a portion of the Asian continent. The eclipse was visible across broad sections of Africa, the Middle East and Asia. In the left foreground, is the H-II Transfer Vehicle-9 from JA...
2020 June 25 Eclipse Street, Hong Kong Image Credit & Copyright: Gary Chan Explanation: On June 21 an annular solar eclipse came soon after the solstice and our fair planet’s northernmost sunset for 2020. At maximum eclipse, the New Moon in silhouette created a ring of fire visible along a narrow path at most 85 kilometers wide. The annular eclips...
2020 June 24 Inverted City Beneath Clouds Image Credit & Copyright: Mark Hersch Explanation: How could that city be upside-down? The city, Chicago, was actually perfectly right-side up. The long shadows it projected onto nearby Lake Michigan near sunset, however, when seen in reflection, made the buildings appear inverted. This fascinating, puzzling, ye...
美国宇航局的第一个行星防御任务目标有了一个新名字 大约在二十年前，一个近地小行星被发现有一颗卫星，该双星系统被命名为“ Didymos”（希腊语，意为“双胞胎”），它是对较大的主体和较小的绕行卫星的一个松散的描述， 非正式地称为DidymosB。 NASA的DART航天器和意大利航天局(ASI)的LICIACube撞击Didymos双星系统之前的示意图。 来源：NASA/Johns Hopkins APL/Steve Gribben 2022年，该卫星将成为NASA的“双小行星重定向测试”（DART）的目标，该测试是用于行星防御的小行星偏转技术的首次全面演示。 DART航天器将执行动能冲击，故意撞向小行星以改变其在太空中的运动。 为了纪念这一历史性任务，Didymos B获得了自己的正式名称：Dimorphos...
As nuclear fusion engines, most stars live placid lives for hundreds of millions to billions of years. But near the end of their lives they can turn into crazy whirligigs, puffing off shells and jets of hot gas. In this image NGC 7027 resembles a jewel bug, an insect with a brilliantly colorful metallic shell. Recently, NGC 7027’s central star was iden...