保护地球，探索宇宙，发现文明
2021年9月13日 Night Sky Reflected Image Credit & Copyright: Egon Filter Explanation: What’s that in the mirror? In the featured image of the dark southern sky, the three brightest galaxies of the night are all relatively easy to identify. Starting from the left, these are the Small Magellanic Cloud (SMC), the Large Magellanic Cloud (LMC), and part of...
2021年01月12日 A Historic Brazilian Constellation Image Credit & Copyright: Rodrigo Guerra Explanation: The night sky is filled with stories. Cultures throughout history have projected some of their most enduring legends onto the stars above. Generations of people see these stellar constellations, hear the associated stories, and pass them down. Featured h...
2020 May 5 Carina in Perspective Image Credit & Copyright: Carlos Kiko Fairbairn Explanation: You need to be in the south, looking south, to see such a sky. And only then if you’re lucky. Just above the picturesque tree is the impressive Carina Nebula, one of the few nebulas in the sky that is visible to the unaided eye. The featured image had to b...
2019 September 30 Orion Rising over Brazil Image Credit & Copyright: Carlos Fairbairn Explanation: Have you seen Orion lately? The next few months will be the best for seeing this familiar constellation as it rises continually earlier in the night. However, Orion’s stars and nebulas won’t look quite as colorful to the eye as they do in this f...
来源：NASA 2019年8月19日，NASA Terra卫星上的MODIS仪器捕获了一幅自然彩色图像，显示巴西帕拉州新普罗格雷索附近的火灾。该镇位于BR-163公路（一条南北向的高速公路）沿线，连接亚马孙南部的农民和亚马孙河上圣塔伦的远洋港口。高速公路周围聚集了牧场和农田，西边的蜿蜒道路连接着小型矿井，深入雨林。 随着亚马孙火灾季接近中点，科学家使用NASA卫星跟踪大火活动证实，2019年巴西亚马孙火灾的数量和强度都有所增加，这是自2010年以来该地区火灾最活跃的一年。 由于经济条件和气候的变化，亚马孙的火灾活动每年每月都有很大差异。NASA戈达德太空飞行中心生物圈科学实验室主任Douglas Morton解释说，今年8月，巴西中部亚马孙主道上的大火格外强烈并持续地燃烧十分引人注目。虽然干旱在过去加剧火灾方面...