星系

星系 (xīng xì) translates to 'galaxy' in English, referring to a vast system of stars, gas, dust, and dark matter bound together by gravity. It is distinct from smaller stellar groupings like star clusters and from the broader concept of the universe.

The character 星 (xīng) means 'star,' while 系 (xì) means 'system' or 'network.' Together, they form a term that captures the grand scale and complexity of celestial structures in space.

星系 is commonly used in scientific and educational contexts, especially when discussing astronomy, space exploration, and cosmology. It appears in textbooks, documentaries, and casual conversations about the universe. Understanding this term helps learners grasp more advanced concepts related to space science.