When it comes to making new stars, the party is almost over in the present-day universe. In fact, it’s been nearly over for billions of years. Our Milky Way continues to form the equivalent of one Sun every year. But in the past, that rate was up to 100 times greater. So if we really want to understand how stars like our Sun formed in the universe, we need to look billions of years into the past.
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Source: Phys.org