Final answer:
Astrology lacks a basis in scientific fact and is considered a pseudoscience. Statistical tests have not found any significant correlation between astrology and real-world outcomes.
Step-by-step explanation:
A major source of scientific skepticism regarding astrology is the fact that it lacks a basis in scientific fact and is considered a pseudoscience. While astrology may have historical significance and may have encouraged people to study the sky and the patterns and cycles of celestial bodies, it does not meet the criteria of a scientific discipline.
Additionally, scientists have carried out statistical tests to evaluate the predictive power of astrology, such as examining whether certain zodiac signs are more likely to be associated with objective measures of success. These tests have not found any significant correlation between astrology and real-world outcomes.