With our current understanding of quantum chromodynamics and our inability to probe the core of neutron stars directly, we can’t know for sure if strange matter is stable. Scientists make conjectures on what would happen if strange matter was stable (for example, how it would interact with normal matter) but we aren’t yet certain about this. Strange matter from the early universe would have evaporated as the universe cooled but strange matter within modern day neutron stars could survive due to the intense heat and pressure, which would mimic conditions shortly after the Big Bang. There are still a lot of uncertainties with strange matter — including whether or not it even exists — but it’s important to think about and prepare ourselves for what we may find.
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