In the late 1990s and early 2000s, people were very afraid that a small collection of quarks in a particle accelerator would destroy the Earth in an instant.
But a single report on a single particle collider, and explanations with phrases like “this makes it even less likely that strangelets could form” isn’t exactly the ironclad assurance that many people will be looking for, especially those who don’t trust scientific experts.
“We know that most of the cosmic rays from space are such that the collisions with the atmosphere are much lower than LHC energies. However, there are ultra-high energy cosmic rays that have energies that transcend these by a fair bit, and this transformed energy is equivalent to being hit head-on.” “Look at collisions that are a little bit lower, ones that are like 20% of [the Oh My God particle event]. We've seen hundreds of collisions that are 20% of that energy. So in that range, those are 25 times more energetic than LHC collisions.”
The entire idea of strangelets rests on the theory that strange matter is the lowest energy state matter can take. In fact, the strange matter hypothesis argues that, in the end, all matter will eventually decay into strange matter, though it will be many times the life of the universe before that would happen.
“There has been no evidence that strangelets have been created, but if they have, they don't persist long enough to give an experimental signature. So it's one of those two things: it's not made or it's not the lowest energy state.”
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