Astrology vs Science: Understanding the Differences


Astrology and science represent two fundamentally different approaches for understanding the world around us. While both offer valuable perspectives, they operate on different principles. In this post, we’ll explore the key differences between astrology and science in a fair and balanced way.

Defining Astrology

A Brief History

Astrology is one of the oldest traditions, dating back at least 5,000 years to ancient Mesopotamia. The basic principles of astrology were later adopted by Egyptian, Indian, Chinese, and Greek civilizations. Astrology involves complex systems for interpreting the positions and movements of celestial bodies like the sun, moon, and planets. Astrologers analyze how these positions supposedly impact events on Earth and influence human behavior and destiny.

Key Principles

There are a few core principles underlying astrology:

  • The positions of celestial bodies at the time of a person’s birth determine their personality and future. This is why astrologers create natal charts based on exact time and location of birth.
  • The positions of planets and constellations relative to each other at a given time have meaning and significance for events on Earth.
  • The movements of the sun, moon, and planets through the zodiac (12 constellations) impact human affairs.

Modern Applications

While astrology originated as a scholarly tradition, today it is primarily used for:

  • Preparing natal charts and horoscopes to analyze personality and predict future events
  • Relationship compatibility based on astrological sign
  • Timing important events like weddings based on auspicious astrological positions
  • Daily, weekly, monthly, and yearly forecasts

In modern times, astrology has become a hugely popular metaphysical system embraced by millions worldwide.

The Scientific Method

A Brief History

Science as we know it today traces its origins to the 17th century Age of Enlightenment and the pioneering work of scientists like Galileo, Newton, and Bacon. They helped establish science based on empirical evidence, observation, testing through repeatable experiments, and a process of continuous questioning and refinement known as the scientific method.

Key Principles

Some core principles of the scientific method include:

  • Establishing theories and hypotheses that can be tested
  • Designing rigorous experiments to test hypotheses under controlled conditions
  • Collecting measurable, empirical evidence objectively
  • Using evidence to refine, change, or reject hypotheses and theories
  • Formulating laws, principles, and causal models based on verified theories
  • Peer-review and reproducing experimental results for verification
  • Acknowledging uncertainty and revising conclusions when new evidence warrants it

Modern Applications

Today, science spans countless specialized fields helping us understand the natural world. Applications include:

  • Advancing knowledge on topics like biology, physics, chemistry, astronomy, and more
  • Developing technology that improves quality of life, from medicine to transportation
  • Enabling data-driven decision making in public policy, business, education and beyond
  • Facilitating discovery and innovation to solve pressing challenges

The fruits of science underpin our modern world, from electricity and smartphones to space travel and life-saving pharmaceuticals.

Key Differences Between Astrology and Science

Ways of Understanding the World

  • Astrology relies on symbolic interpretation and metaphysical principles. Science relies on direct observation, experiments, and verifiable evidence.
  • Astrology posits intrinsic meaning in the positions of celestial objects and their influence on human lives. Science studies astronomical bodies objectively without assuming meaning or influence.
  • Astrology seeks mystical insights into life based on esoteric knowledge. Science aims to understand natural phenomena through testable theories requiring proof.

Prediction and Forecasting

  • Astrologers assert that detailed predictions can be made about an individual’s life based on their natal chart. Scientists consider such precision impossible given the complexity of variables that shape human lives.
  • Astrology believes celestial movements can predict upcoming world events and human affairs. Science would demand statistically significant correlation before accepting such claims.

Perspectives on the Universe

  • Astrology suggests that the positions of stars and planets somehow influence people and events on Earth in a supernatural way. Science currently sees no evidence of such mysterious cosmic influence, only gravitation and other measurable forces.
  • Astrology views the universe as intrinsically purposeful with humanity at the center. The scientific cosmos is naturalistic, driven by physical laws rather than purpose, with humanity peripheral.

Openness to Revision

  • Astrological systems and principles have remained largely fixed for centuries. Scientific knowledge is open-ended, ready to be refined, updated or overturned by new evidence.

So in summary, astrology and science offer contrasting worldviews – one mystical and motivated by symbolic meaning, the other empirical and based on direct evidence. Both have limitations but provide valuable lenses for understanding our lives and place in the universe.


The differences between astrology and science are profound but understanding each perspective enables a more nuanced worldview. Astrology provides inspiration by revealing symbolic meaning in the cosmos.

Science gives a sharper, data-driven map of reality’s observable dimensions. Embracing insights from both realms allows us to balance intuition with rationality. Ultimately, both the mystical and empirical are vital for grasping life’s essential wholeness.


Thagard, Paul R. 1978. “Why Astrology is a Pseudoscience”. PSA: Proceedings of the Biennial Meeting of the Philosophy of Science Association, Vol. 1978, Volume One: Contributed Papers (1978), pp. 223-234.

Tarnas, Richard. 2006. Cosmos and Psyche: Intimations of a New World View. New York: Viking Penguin.

Kuhn, Thomas S. 1996. The Structure of Scientific Revolutions. 3rd ed. Chicago, IL: University of Chicago Press.

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