The following is an 18-minute PBS Space Time video, where Matt O'Dowd
presents an interesting hypothesis about some of the very oldest stars
found by JWST:
<
https://www.youtube.com/watch?v=zUhOL38346Y>
Short version: The current understanding of stellar evolution has
trouble accounting for these massive stars appearing so soon after the
Big Bang. An alternate hypothese is they are dark matter stars. This
might seem counter-intuitive because at the present time:
1. dark matter emits no light, and
2. dark matter doesn't interact with itself strongly enough to
condense into anything but an extremely diffuse gas.
The hypothesis suggests dark matter particles during the early
universe were sufficiently dense enough to interact and annihilate
themselves, much as matter and anti-matter do. This would allow a
dark matter cloud to further condense and eventually form stars
consisting mostly of annihilating dark matter particles.
--
To know less than we don't know is the nature of most knowledge
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