Universe forms half the stars it did 4.5 billion years ago
A new study reveals that the rate of star formation in the universe has dropped by half over the past 4.5 billion years.
KEY POINTS
- Star formation rate has dropped by about half over the last 4.5 billion years
- Galaxies have not lost an equivalent amount of their primary raw material
- The finding prompts a reevaluation of why cosmic star-forming factories are slowing down
The universe continues to produce stars, but it is doing so at an increasingly slower pace. A new study reveals that over the past 4.5 billion years, the star formation rate has dropped by approximately half.
Despite this dramatic slowdown, galaxies have not lost an equivalent amount of their primary raw material. This unexpected finding forces scientists to rethink why the cosmos's major star-forming factories are gradually shutting down.
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