IGCSE Astronomy opens the door to understanding the universe, from the motion of planets in our Solar System to the life cycles of distant stars. This course provides a clear, structured journey through the core ideas of astronomy, giving learners both scientific knowledge and practical observational skills.

You’ll begin with the foundations of astronomy, exploring how early astronomers mapped the sky and how modern scientists use telescopes, space probes, and advanced imaging technologies to study celestial objects. As you progress, you’ll discover the structure of the Solar System, compare terrestrial and gas-giant planets, learn how the Moon’s phases work, and analyse the role of gravity in shaping planetary motion.

The course then moves outward into deep-space topics, including how stars are born, how they evolve, and what happens when they die in spectacular events such as supernovae. You will study stellar classifications, black holes, neutron stars, and pulsars. The module on galaxies expands your understanding further, introducing the Milky Way, galaxy types, the Big Bang Theory, cosmic expansion, dark matter, and dark energy.

A dedicated section on exoplanets and habitability examines how astronomers search for life beyond Earth, what makes a planet habitable, and how advanced detection techniques—like transit measurements and radial velocity—are used to confirm new worlds.

You’ll finish with practical skills in observational astronomy. This includes using telescopes, interpreting night-sky measurements, analysing celestial charts, and understanding how satellites and observatories contribute to modern research.

By the end of the course, you will have a strong foundation in astronomy and a practical appreciation for how scientists explore the universe. Learners will also receive a free course completion certificate. Multiple premium certificate and transcript options are available for students who want official verification. You’ll also have access to 5-star rated support, available 24/7 via email.