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Showing posts from October, 2016

The missing moon

Imagin there was no moon. the  earth has a large moon,making it unique from the earth solar system.Mercury & Venus has no moons,mars has two small asteroid object orbiting round it. if we had no moon. when the moon was first formed, it was close to the earth.it was possibly only 20 to 30 thousand kilometres away from itat least 20 to 10 times bigger. But there were no living creatures on the Earth at that time to witness this beautiful scene. The tidal effect of a body increases as a cube of the distance, so the effect of the Moon’s tidal forcing on the Earth was extremely high at this time, to the point that the early magma ocean was affected. This provided some additional energy to the heating from radioactive elements present, but after the radiogenic heating decayed, the Moon still was a source of heating that may have had some geological effect, keeping the Earth’s magma hot and perhaps forcing additional convection in the Earth’s mantle. After the Earth start