What is the explanation behind astrology?

Astrology is a method of predicting mundane events based upon the assumption that the celestial bodies—particularly the planets and the stars considered in their arbitrary combinations or configurations (called constellations)—in some way either determine or indicate changes in the sublunar world.

Is astrology scientifically true?

Astrology is founded on understanding the positions of the stars, which seems like a scientific enough pursuit in itself. But is there any science to back up whether astrology impacts our personality and our lives? Here's the short Answer: No. None whatsoever.