How does a universe where stars have died differ chemically from one that never had stars?

Answer

The post-stellar universe is rich in heavy elements locked in remnants and planets

A universe that never had stars lacks heavy elements, but a universe after stars have died is rich in them, locked inside stellar remnants and the planets that formed around those stars.

How does a universe where stars have died differ chemically from one that never had stars?

#Videos

Could Life Survive Without a Star? - YouTube

Planets Without Stars – Hidden Worlds in the Galaxy - YouTube

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