In this image that astronaut Scott Kelly posted to Twitter on Aug. 9, 2015 during his #YearInSpace captures all the the places humans dwell – the Earth, the International Space Station and the Milky Way. His accompanying caption read: “Day 135. #MilkyWay. You’re old, dusty, gassy and war […]
Today is World Health Day and NASA’s Earth Science Division is using information from our Earth-observing satellites, surface sensors, and computer-based datasets to study the environmental, economic, and societal impacts of the COVID-19 pandemic and to determine whether environmental factors
NASA has investigated humanity’s impact on a number of our home planet’s natural resources and recently explored our impact on freshwater resources. Scientists have now completed the first global accounting of fluctuating water levels in Earth’s lakes and reservoirs – including ones prev
Did you know that NASA’s Kennedy Space Center shares its home with the Merritt Island National Wildlife Refuge? In this image from 2014, a great egret strikes a classic pose amid the brush on Kennedy Space Center in Florida. The undeveloped property on Kennedy is managed by the U.S. Fish and W
2021年02月28日 The Aurora Tree Image Credit & Copyright: Alyn Wallace Explanation: Yes, but can your tree do this? Pictured is a visual coincidence between the dark branches of a nearby tree and bright glow of a distant aurora. The beauty of the aurora — combined with how it seemed to mimic
This view of a sunrise breaking through the Earth’s horizon was taken on Feb 3, 2021, as the International Space Station orbited 271 miles above the Pacific Ocean off the coast of southern Chile in South America. The space station, humanity’s only orbital laboratory, orbits the Earth abo
2021年02月03日 Found on the Moon: Candidate for Oldest Known Earth Rock Video Credit: NASA, Astromaterials 3D, Erika Blumenfeld et al. Explanation: Was the oldest known rock on Earth found on the Moon? Quite possibly. The story opens with the Apollo 14 lunar mission. Lunar sample 14321, a large rock fo
2021年01月31日 Asteroids in the Distance Image Credit: NASA, ESA, Hubble; R. Evans & K. Stapelfeldt (JPL) Explanation: Rocks from space hit Earth every day. The larger the rock, though, the less often Earth is struck. Many kilograms of space dust pitter to Earth daily. Larger bits appear initially
从全球来看，2020年是有记录以来最热的一年，实际上追平了2016年的纪录。总的来说，自19世纪80年代以来，地球的平均温度上升了超过2华氏度。由于人类活动，特别是二氧化碳和甲烷等温室气体的排放，气温正在上升。 影像来源：美国宇航局科学可视化工作室/洛莉·帕金斯/凯瑟琳·默斯曼 NASA的一项分析显示，2020年地球表面平均温度与2016年持平，是有记录以来最热的一年。 美国国家航空航天局戈达德空间研究所(GISS)的科学家表示，由于地球长期变暖的趋势，今年全球平均气温比1951-1980年的基线水平高出1.84华氏度(1.02摄氏度)，在分析的误差范围内，2020年以非常小的幅度超过了201
