The Bible says that a menstruating woman is unclean, and must be kept separate from clean people for seven days. It also says that any man who sees his wife naked while she is menstruating must also be excluded from society. Other cultures have similar tabus, the more primitive the belief system, the greater the fear.
Superstitious beliefs about menstruation include not washing your hair when menstruating. The superstitions about menstruation are myths and most women live life the same when they are menstruating. Superstitions that you cannot swim or bath during menstruation are false.
There are no scientific evidences for superstitious beliefs. Not only that, but there is no evidence of any kind for superstitious beliefs.
All of them, that is why they are superstitions.
Superstitious beliefs are basically not proven and beliefs with scientific basis are beliefs that are proven to be true.
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Check out the related link for a list of some superstitious beliefs and practices.
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A meteor is an inanimate object and has no beliefs