On November 21, the Faculty of Physics – Engineering Physics, University of Science, VNU-HCM, organised the seminar “Data-Driven Discoveries in Cosmology: What Millions of Galaxies Have to Say”, offering participants an exciting journey into the universe through the lens of modern large-scale data analysis.
The seminar opened with an introduction to how scientists utilise data from millions of galaxies to map the large-scale structure of the Universe. Attendees were guided through the essential steps of a contemporary cosmological research program, including survey design, data acquisition, theoretical modelling, statistical analysis, and the growing role of machine learning in processing massive astronomical datasets.

The speaker then presented key findings from DESI - the Dark Energy Spectroscopic Instrument - one of the most ambitious cosmology projects currently underway. With its ability to observe millions of galaxies, DESI is contributing significantly to unveiling the nature of dark energy and dark matter, two components that dominate the Universe yet remain largely unknown.
The seminar concluded with an overview of the Prime Focus Spectrograph (PFS), a next-generation survey expected to deliver major breakthroughs in understanding the formation and evolution of cosmic structures. Dr. Minh highlighted the scientific aims, methodological approaches, and the transformative impact that PFS is anticipated to bring in the coming years.
Beyond providing updated knowledge in cosmology, the seminar inspired students’ interest in data science, astrophysics, and interdisciplinary research. This event is one of the Faculty’s important academic activities aimed at fostering a dynamic research environment and encouraging student engagement with cutting-edge scientific fields.