保护地球，探索宇宙，发现文明
2020年8月7日 The Pipe Nebula Image Credit & Copyright: Jose Mtanos Explanation: East of Antares, dark markings sprawl through crowded star fields toward the center of our Milky Way Galaxy. Cataloged in the early 20th century by astronomer E. E. Barnard, the obscuring interstellar dust clouds include B59, B72, B77 and B78, seen in against the starry backgro...
This long-exposure photograph captures a starry sky above the Earth’s atmospheric glow as the International Space Station orbited above the Indian Ocean about halfway between South Africa and Australia. Image Credit: NASA 当国际空间站在南非和澳大利亚之间的印度洋上空绕轨道运行时，她的长曝光照片捕捉到了地球大气辉光上方繁星点点的星空。 影像来源：NASA
NASA’s Curiosity Mars Rover touched down eight years ago, on Aug. 5, 2012, and will soon be joined by another rover, Perseverance, which launched on July 30, 2020. Curiosity has seen a lot since it first set its wheels inside the 96-mile-wide (154-kilometer-wide) basin of Gale Crater. Its mission: to study whether Mars had the water, chemical building ...
For decades, astronomers have known about irregular outbursts from the double star system V745 Sco, which is located about 25,000 light years from Earth. V745 Sco is a binary star system that consists of a red giant star and a white dwarf locked together by gravity. These two stellar objects orbit so closely around one another that the outer layers of the re...
2020年8月6日 Messier 20 and 21 Image Credit & Copyright: Emanuele Petrilli Explanation: The beautiful Trifid Nebula, also known as Messier 20, is easy to find with a small telescope in the nebula rich constellation Sagittarius. About 5,000 light-years away, the colorful study in cosmic contrasts shares this well-composed, nearly 1 degree wide field with ope...
2020年8月4日 NGC 2442: Galaxy in Volans Image Credit & Copyright: Processing: Robert Gendler & Roberto Colombari Data: Hubble Legacy Archive, European Southern Observatory Explanation: Distorted galaxy NGC 2442 can be found in the southern constellation of the flying fish, (Piscis) Volans. Located about 50 million light-years away, the galaxy’s ...
NASA约翰逊航天中心的高级航天服设计师艾米·罗斯与航天服Z-2的样品站在一起。 图片来源：NASA 在一次问答环节中，航天服设计师艾米·罗斯（Amy Ross）解释了在7月30日发射的毅力号（Perseverance）火星车上，航天服的五片样品（包括一枚头盔面罩）将如何进行测试。 美国航空航天局（NASA）正准备将第一位女性和第二位男性送上月球，而更为宏大的目标，则是将第一批宇航员送上火星表面。但是在到达红色星球之前，宇航员将面临一个非常重要的问题：在大气极为稀薄、受太阳和宇宙射线的辐射更强的火星上，他们应该穿什么？ 艾米·罗斯正在寻找这一问题的答案。她来自NASA位于休斯敦的约翰逊航天中心（Johnson Space Center in Houston），是一名高级航天服设计师，正在为月球和火星开发新的航天...
Credit：NASA 北京时间8月3日凌晨2时48分（美国东部时间8月2日14时48分），NASA宇航员Robert Behnken 和 Douglas Hurley乘坐奋进号载人龙飞船，溅落在佛罗里达彭萨科拉（Pensacola）海岸。 载人龙飞船的舱门在3时59分（71分钟后）打开，Behnken和Hurley离开飞船，登上Go Navigator号船进行了初步的医疗检查，随后乘坐直升机返回岸上，抵达岸上后，两名NASA宇航员立即坐上早已等待的飞机，飞往休斯顿。 Credit：NASA Behnken和Hurley于今年5月31日抵达空间站，他俩在空间站呆了62天，环绕地球近1024圈，这期间有1次货运飞船造访，1次驶离，进行了近114小时的研究，另外Bob Behnken和Chris Cassidy进行...
NASA astronauts Robert Behnken and Douglas Hurley are aboard the SpaceX Crew Dragon Endeavour spacecraft as it is lifted onto the SpaceX GO Navigator recovery ship shortly after landing in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. The Demo-2 test flight for NASA’s Commercial Crew Program was the first to deliver astr...
NASA astronauts Robert Behnken, left, and Douglas Hurley are seen inside the SpaceX Crew Dragon Endeavour spacecraft onboard the SpaceX GO Navigator recovery ship shortly after having landed in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. The Demo-2 test flight for NASA’s Commercial Crew Program was the first to deliver...