Memorial Lecture Celebrating Professor Arthur Bleksley: Honoring a Legendary Science Communicator at Wits University
On March 6, 2026, Wits University conducted a memorial lecture commemorating Professor Arthur Bleksley, a distinguished science communicator renowned for his radio programs, including “Test the Team.” The lecture was presented by Professor David Block in the Wits Anglo American Digital Dome, emphasizing Professor Bleksley’s substantial contributions to public science communication.
Advancements of the James Webb Space Telescope
The presentation, titled “The Poetry of Light: JWST and the Dawn After Darkness,” focused on the advancements made by the James Webb Space Telescope (JWST) in the exploration of the early universe. Since its launch in 2021, the JWST has utilized advanced technology, including eighteen gold-plated mirrors and infrared instruments, to detect faint light from distant galaxies. This capability has enabled astronomers to observe cosmic events that transpired over 13 billion years ago.
Professor Bleksley’s Impact on Astronomy
Professor Bleksley, a pioneering figure in applied mathematics at Wits, was instrumental in enhancing the popularity of astronomy in South Africa. He helped to establish the Johannesburg Planetarium, where he played a key role in introducing students and the public to astronomical concepts. Throughout his career, he underscored the importance of sharing scientific knowledge broadly, promoting public engagement with science through lectures, radio programs, and various educational initiatives.
Reflection by the Vice-Chancellor
Vice-Chancellor and Principal of Wits University, Professor Zeblon Vilakazi, opened the lecture by reflecting on Bleksley’s belief that science should be accessible to society beyond the confines of universities. He emphasized that “science is not complete until it is shared,” highlighting the necessity of fostering public comprehension of scientific principles, particularly in an era increasingly beset by misinformation.
Insights from Professor Block’s Lecture
In his lecture, Professor Block discussed the significance of observing light from galaxies that emerged shortly after the Big Bang. He elaborated on the JWST’s capacity to reveal galaxies as they were over thirteen billion years ago, noting that “each photon carries the history of stars, the chemistry of nebulae, and the imprint of an expanding universe.”
Linking Contemporary Studies to Professor Bleksley’s Legacy
The lecture also addressed Professor Block’s ongoing investigations into cosmic dust and its influence on star and galaxy formation, thereby linking contemporary astronomical studies to the legacy of Professor Bleksley. Throughout his presentation, Professor Block honored Bleksley’s dedication to education, invoking a quote by Plutarch: “The mind is not a vessel to be filled, but a fire to be lit.”
Celebration of Professor Bleksley’s Influence
The memorial lecture served to celebrate Professor Bleksley’s enduring influence on science communication and education, reaffirming the crucial role of universities in motivating future generations of scientists.
(Source: Wits University)
