There are a lot of things we simply cannot explain. 'Science' tries to just dismiss anything it can't explain. The very definition of 'science' is to try to explain things but when many scientists don't know they dismiss, rather than just admit that it's something we don't know but can certainly learn more with time and perspective. I see it all too often. We can't explain everything right now but we can work at it and in the future we may be able to.