今天的金星是一个地狱般的世界，大气中的二氧化碳浓度高达96.5 %，表面温度高达462摄氏度（864华氏度）。 Credit：NASA 然而很久很久之前的金星不是这样，NASA戈达德太空研究所（GISS）的科学家们对金星的古代气候进行计算机模拟后，发现早期的金星曾有过长达20亿年的浅层液态海洋，以及宜居的地表环境。 今天有一则爆炸性新闻在推特上热议，一个由麻省理工学院，曼彻斯特大学和卡迪夫大学人员组成的研究团队，借助位于智利ALMA阵列和夏威夷的麦克斯韦望远镜，在金星的大气层中发现了磷化氢（PH3），许多天体生物学家将磷化氢视为“生物标志”，也就是说这里可能存在着生命的迹象。 来源：麻省理工学 […]
During her first mission to space and to the International Space Station, Kate Rubins became the first person to sequence DNA in space. During her upcoming mission, Rubins will work on a cardiovascular experiment that builds on an investigation she completed during her first space mission and conduc
Many colorful stars are packed close together in this image of the globular cluster NGC 1805, taken by the NASA/ESA Hubble Space Telescope. This tight grouping of thousands of stars is located near the edge of the Large Magellanic Cloud, a satellite galaxy of our own Milky Way. The stars orbit close
2020年9月13日 M2-9: Wings of a Butterfly Nebula Image Credit: Hubble Legacy Archive, NASA, ESA – Processing: Judy Schmidt Explanation: Are stars better appreciated for their art after they die? Actually, stars usually create their most artistic displays as they die. In the case of low-mass stars
