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Explore the enigmatic world of dark matter in this 45-minute lecture that delves into one of astronomy's greatest mysteries. Discover how astronomers have become increasingly certain that most of the Universe consists of a mysterious, invisible substance that defies current understanding of physics, yet has shaped the cosmos from its earliest moments and played a crucial role in forming galaxies, stars, and life itself. Learn about the compelling evidence that has led scientists to this astonishing conclusion, from galaxy motions to the afterglow of the Big Bang, revealing clues that point to this hidden side of the cosmos. Examine the latest breakthroughs and challenges in dark matter research, including how traditional particle searches may be reaching their limits, exciting new possibilities with candidates like axions, and the intriguing twists and false alarms that have characterized the search. Gain insights from astronomer Matt Bothwell, Public Astronomer at the Institute of Astronomy, University of Cambridge, as he guides you through the ongoing quest to uncover the true nature of this invisible material that appears to dominate our Universe.
