In an average winter, there are normally one septillion snowflakes that fall, which is the same as one trillion trillion snowflakes. For years there has always been doubt that two different snowflakes can have the exact same structure therefore looking the exact same as each other. In 2007 scientists actually found two snowflakes that were exactly the same. The problem with this is that they were considered nano-flakes.
Nano-flakes are considered snowflakes, but they are much smaller and very simple compared to the average snowflake. They do not look like the ornate snowflakes that most people are accustomed to seeing. They are simple shapes, like hexagonal or octagonal prisms. These small structures normally have an average of about ten water molecules. These flakes are microscopic, and therefore cannot be seen by the naked eye. These nano-flakes can be the same because there are not many molecules of water that have to align perfectly the same. There is a less chance of a nano-flake being different than a normal flake, which has an average of 1018 water molecules bonded together.
With all of these molecules that have to bond together perfectly it is pretty much impossible for two snowflakes to be exactly the same, although one would think that two out of every septillion snowflakes would be alike. The fact is that there are so many possibilities of how a snowflake forms. Many snowflakes do not even form an even crystal structure, which adds another level of complexity to trying to get two of the same snowflakes.
The fact is that nobody will ever know if two snowflakes can be exactly the same. No person can ever go through one septillion snowflakes across the world every year. Based on math statistics, two snowflakes cannot be the same, but I think that it is possible. Just like in the movie “Jurassic Park,” nature always finds a way.