Galactic ‘rain’ explains why some galaxies are better at creating stars |

Some of the galaxies in our universe are veritable star nurseries. For example, our own Milky Way produces, on average, at least one new star every year. Others went barren years ago, now producing few if any new stars. Why that happens is a question that has dogged astronomers for years. But now, more than 20 years of research by a team led by Michigan State University has culminated in what might be the answer to that elusive question. “Astronomy gets people’s attention,” he said. “It makes people curious. It motives them to learn more. What astronomy does is help sustain our culture of discovery.”
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