Students enrolling in Carnegie Mellon University Tepper School of Business have an average GMAT of 690, which is much higher than average compared to all business schools (613).
But how did it end up being this pure in most parts of the Moon? The secondary event that explains it, notes the report, is what researchers are calling a crustal overturn. Old impure plagioclase was replaced by hot, pure plagioclase as the moon cooled rapidly. Asteroid hits, space dust, and other harsh space conditions could have also sheared away the surface impurities, notes the report.
How Hot is it on the Moon? I've broken this topic off from the thread titled, Neil Armstrong: Why I Didn't Walk Far on Moon because there seems to be a lot of misunderstanding on the subject. Let's talk about the temperature on the moon. That phrase has led to a lot of confusion.