保护地球，探索宇宙，发现文明
2022年11月9日 The Asymmetric Nebula Surrounding Wolf-Rayet Star 18 Image Credit & Copyright: Alex Woronow Explanation: Why does the nebula around the star WR-18 shine brighter on one side? Also known as NGC 3199, this active star and its surrounding nebula lie about 12,000 light-years away toward the nautical southern constellation of Carina. The featured ...
2021年05月02日 Clouds of the Carina Nebula Image Credit & Copyright: John Ebersole Explanation: What forms lurk in the mists of the Carina Nebula? The dark ominous figures are actually molecular clouds, knots of molecular gas and dust so thick they have become opaque. In comparison, however, these clouds are typically much less dense than Earth’s atm...
2021年02月08日 WR32 and Interstellar Clouds in Carina Image Credit & Copyright: Ariel Cappelletti Explanation: Stars can be like artists. With interstellar gas as a canvas, a massive and tumultuous Wolf-Rayet star has created the picturesque ruffled half-circular filaments called WR32, on the image left. Additionally, the winds and radiation from a small c...
2019 June 23 哈勃望远镜的船底座大星云全景图 影像提供：NASA，ESA，N。Smith（美国加州大学伯克利分校）等人和The Hubble Heritage Team（STScI / AURA） 说明：极端活跃的恒星会如何影响周围的环境呢？为解谜提供助力，天文学家针对船底座大星云，这个地球夜空最大的恒星形成区之一的中心，制作了一幅组合了48张照片的高解析彩色全景图。这幅摄于2007年的主题影像，是截自目前为止最细致的船底座大星云影像。编录号为NGC 3372的船底座大星云，拥有数量众多的丝状炽热气体，潭状的低温气体，结状的黝黑云球，以及柱状的致密星际尘埃物质。位于影像中左方的钥孔星云，内部有数颗现有最大质量的恒星。这些庞大且极端活跃的恒星，极可能是诞生于黝黑云球内，并用它们高能的星光，外泛的恒星风...