DECODING THE UNIVERSE

That is the idea behind Decoding the Universe. In this program, students learn how physicists and astronomers extract information from the light and radiation reaching us from space. We begin with the basics: atoms, molecules, electrons, ionization and radiation. Why do atoms emit only certain colours of light? Why does every element leave its own spectral fingerprint? And what happens when matter becomes a plasma?

From there, students enter the world of spectroscopy. They observe spectra from laboratory light sources and plasmas, learn how emission and absorption lines are formed, and see how wavelength, intensity and line shape can reveal physical information. A spectrum is no longer just a colourful graph — it becomes a coded message.

Now let us take the same ideas into space. What can the spectrum of a star tell us? Students explore how spectroscopy can reveal chemical composition, temperature and motion through Doppler shifts. They then move from stars to nebulae and galaxies, where the data become richer and more complex.

But modern astrophysics is not only about looking through telescopes. It is also about handling enormous datasets. Students will learn how astronomical measurements are cleaned, plotted and analysed using computational tools, and how different observations — optical, infrared, radio and others — can be combined to understand the same cosmic object.

Finally, they are introduced to the role of statistics and machine learning in modern astronomy: not as shortcuts, but as tools used after the underlying physics is understood.

By the end, students will see that light travelling across space is not just something we observe — it is information waiting to be decoded.