Without the moon, we would not have reliable seasons. Because the moon stabilizes the earth's axis. If it did not exist, the earth's axis would spin vigorously every few million years. With devastating effects on the climate. Researchers have calculated: the earth's axis could occasionally tilt by almost 90 degrees. Then the North Pole could very quickly be in the tropics, and that would mean: Every half of the earth would have blazing sun for half a year, followed by a cold, darkest night for half a year. The moon, on the other hand, holds the earth's axis somewhat in position, so that such extreme conditions cannot exist.
The continents might still be inanimate and all life would take place in the sea. Because the moon brings us to ebb and flow, and thus also the floodplains on the coast, in the transition between water and land. Large areas are flooded twice a day and dry out in between. These transition areas played an important role in evolution: this is where the amphibians developed, which later crawled further and further ashore and from which lizards, dinosaurs, and mammals eventually developed. The ebb and flow would be much weaker, and all these floodplains would not have existed in this form.
The days would be shorter. Today it takes the earth 24 hours to turn once on itself. In the early days of the earth, it spun four times as fast. Accordingly, a day lasted only 6 hours. It was the moon that slowed the earth down: Due to the tides that it triggers, the ebb and flow of the tide, and all this sloshing back and forth on the earth, the earth is constantly losing its rotational energy and as a result, turns slower and slower. Follow, Like, and Share
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