Sports are well-known for there use of superstition. This year Michael Phelps gained a bit of notoriety when we started cupping, and ancient form of Chinese blood-letting, in order to give him an edge in "letting out toxins and increasing performance." This practice has very little quality scientific evidence to support it and any studies done had a very low amount of test subjects and were very biased towards the practice. Most studies came out of of China which is notorious for biases towards in ancient medicinal practices. Any study done in a Western state with a large test pool has shown either no noticeable effects or even some negative effects in the form of anemia.
It is thought that earlier in our solar systems life time there could have been more planets orbiting our sun that we have today. However, if these planets, and by extensions other planetoids, were to come close enough to each other then by the Law of the Conservation of Gravity one of the planetoids could have sped up so much that it could have escaped our suns gravitational pull. This would have been extremely rare due to the large size of our universe and even our solar system. If we did discover a meteor from another solar system it could tell us what kind of materials are abundant in that solar system and even if that solar system have some of the necessary materials to support life as we know it
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