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The end may be cold, rather than hot–if that’s the case, we’ll see plenty of snowflakes. Snowflakes come in what seems like endless variety of shapes, although the verdict is out on whether or not no two are ever alike.
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We’ve always heard that no two snowflakes are alike. It seems impossible?and it turns out that it IS impossible. Scientists are studying snowflakes because they think they may play an important role in global warming.

Snowflakes are created when snow crystals stick together. In LiveScience.com, Charles Q. Choi quotes cloud physicist Jon Nelson as saying that the number of snow crystals that fall to earth per year is “about 1 followed by 24 zeros.” A cubic foot of snow contains around a billion crystals. With numbers like that, some of those crystals are BOUND to be identical.
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