[Auto-translated content] Today, Thursday, February 20, 2025, the “ALECSO Talks” series event was held at the headquarters of the Arab League Educational, Cultural and Scientific Organization, which hosted Professor Dr. Issam Hajji, a researcher in space sciences at the University of Southern California and the Jet Propulsion Center at NASA. In his welcoming speech, Professor Dr. Muhammad Sanad Abu Darwish, Director of the Organization’s Department of Science and Scientific Research, indicated that this scientific event comes within the efforts made by ALECSO to appreciate the performance and scientific excellence of Arab scientists and researchers from all Arab countries in recognition of what they provide for the service and advancement of humanity, day after day and generation after generation, as well as in implementation of the strategic plan for scientific and technological research and innovation, which the Arab Summit assigned 28 tasks to follow up on its implementation for ALECSO with the aim of spreading scientific culture and celebrating Arab scientific efforts. At the opening of this important scientific event, His Excellency Professor Dr. Mohamed Ould Omar, Director General of ALECSO, delivered a speech in which he welcomed the organization’s guest, their Excellencies, the ambassadors of the Arab countries to the Republic of Tunisia, and the attendees. He expressed his happiness at the presence of the guest of honor of ALECSO, Professor Dr. Issam Hajji, who has distinguished scientific achievements in the field of earth and space sciences, and as one of the prominent Arab researchers in designing satellites dedicated to discovering planets and studying climate and environmental changes in the desert regions of the Earth. His research, using radar techniques, contributed to answering several questions about the evolution of water in desert environments and the planets of the solar system. Professor Dr. Issam Hajji gave his lecture entitled “Space Technology for Monitoring Climate and Environmental Changes in Desert Areas,” in which he explained the importance of monitoring changes in groundwater, rivers, and sea level rise in the Arab region. At the conclusion of the activity, His Excellency the Director General of the organization, Professor Dr. Mohamed Ould Omar, handed over the ALECSO shield to Professor Dr. Issam Hajji, in appreciation of his efforts and scientific excellence. This hosting falls within the framework of continuing to organize the “ALECSO Talks Series,” which is a series of multi-topic meetings, which includes meetings with Arab figures from decision-makers and figures of thought, science, culture, and economics in the Arab world and the world, who have achieved wide radiance in their fields of specialization.