保护地球，探索宇宙，发现文明
2022年3月17日 Centaurus A Image Credit & Copyright: David Alemazkour Explanation: A mere 11 million light-years away, Centaurus A is the closest active galaxy to planet Earth. Spanning over 60,000 light-years, the peculiar elliptical galaxy also known as NGC 5128, is featured in this sharp telescopic view. Centaurus A is apparently the result of a collisio...
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...