NASA的罗曼太空望远镜将如何记录活跃的宇宙
NASA的南希·格蕾丝·罗曼太空望远镜将把基于太空的观测与广阔的视野相结合，以前所未有的方式揭示动态的宇宙。
标签： 活动星系
邻近的螺旋星系NGC 4945
2022年2月26日 Nearby Spiral Galaxy NGC 4945 Image Credit & Copyright: Dietmar Hager, Eric Benson Explanation: Large spiral galaxy NGC 4945 is seen nearly edge-on in this cosmic galaxy close-up. It’s almost the size of our Milky Way Galaxy. NGC 4945’s own dusty disk, young blue star clusters, and pink star forming regions stand out in the colorf...
半人马座A的核心区
2020 February 22 Central Centaurus A Image Credit: NASA, ESA, Hubble Heritage (STScI/ AURA)-ESA/Hubble Collaboration Explanation: A mere 11 million light-years away, Centaurus A is the closest active galaxy to planet Earth. Also known as NGC 5128, the peculiar elliptical galaxy is over 60,000 light-years across. A region spanning about 8,500 light-years, inc...
NGC 1499：加州星云
2019 August 23 NGC 1499: The California Nebula Image Credit & Copyright: Sara Wager Explanation: Drifting through the Orion Arm of the spiral Milky Way Galaxy, this cosmic cloud by chance echoes the outline of California on the west coast of the United States. Our own Sun also lies within the Milky Way’s Orion Arm, only about 1,500 light-years from...
邻近的旋涡星系NGC 4945
2019 August 22 Nearby Spiral Galaxy NGC 4945 Image Credit & Copyright: Martin Pugh Explanation: Large spiral galaxy NGC 4945 is seen edge-on near the center of this cosmic galaxy portrait. In fact, it’s almost the size of our Milky Way Galaxy. NGC 4945’s own dusty disk, young blue star clusters, and pink star forming regions standout in the s...