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.
Also, without the moon, Earth would spin faster. Our day would be shorter. Billions of years ago, Earth spun around on its axis much faster. Our worldâs cycle of day and night was less than ten hours long. The ebb and flow of the tides are what put the brakes on Earthâs spin. The moon and sun together cause the tides. If weâd never had a moon, weâd still have tides, but they wouldnât be as strong.