Friday, November 23, 2012

Quasicrystals "In Space!"

          As you may or may not know quasicrystals were discovered by scientists only in the last 40 or so years. And before that most scientists refused to believe that they even existed because of how crazy the concept of quasicrystals were. So imagine the surprise when two people by the name of Paul J Steinhardt and Luca Bindi discovered a meteorite containing quasicrystals in eastern Russia within the Koryak Mountains around the 1980s. Before this discovery, only one natrual quasicrystal had been documented. The sample in question, currently located in the Museum of Natural Florence, Italy, was found to have the symmetry of a soccerball; with six axes of five-fold symmetry forbidden to ordinary crystals. And what makes this all more interested was the type of meteorite that the quasicrystals were discovered in. This meteorite was a CV3 carbonaceous chondrite. And for the 3 of you people that don't understand meteor terminology, it means that this rock was formed around 4.5 billion years ago; around the time that the solar system first began. 
Meteor striking Earth's atmosphere. Scientists reveal that new, naturally occurring quasicrystal samples have been found in an environment that does not have the extreme terrestrial conditions needed to produce them, therefore strengthening the case that they were brought to Earth by a meteorite. (Credit: © JRB / Fotolia)


        This is a huge discovery. It means that something that's existence has been acknowledged within the last 40 years or so has been in production by the universe since the beginning of the universe or at least our own solar system. This creates several questions that have to be solved, and according to Paul J. Steinhardt, those questions are: "What does nature know that we don't?", How did the quasicrystal form so perfectly inside a complex meteorite when we normally have to work hard in the laboratory to get anything as perfect?", What other new phases can we find in this meteorite and what can they tell us about the early solar system?". While these questions are very good, I feel the need to add one more, call it some food for thought. What other things are there that modern science has already dismissed that are in fact legitimate? Thanks for reading.



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