Over the past 4.5 billion years, star formation across the universe has fallen dramatically. But surprisingly, the supply of neutral hydrogen, a key ingredient for making stars, hasn't declined much. New research from China's FAST radio telescope and DESI data shows that star formation was about twice as high 4.5 billion years ago while hydrogen levels were only about 1.4 times higher.
מקור: Latest Science News — ScienceDaily — לכתבה המלאה
כתיבת תגובה