We are pleased to announce the 21st Annual International Astrophysics Conference - Bracketing the Solar Wind: The Physics of its Initiation and Termination to be held at the AC Hotel by Marriott Torino in Turin, Italy, from March 25ᵗʰ to March 29ᵗʰ, 2024. (Welcome Reception and Evening Registration begins Sunday, March 24ᵗʰ). About The conference is intended to focus on the origins and termination of the solar wind, examining the pressing question of the initiation of the solar wind low in the solar corona and terminating in its interaction with the local interstellar meeting. Accordingly, the theme of the meeting will be: 'Bracketing the Solar Wind: The Physics of its Initiation and Termination'. We will follow the usual format of 25-minute presentations punctuated by selected 40-minute invited talks that will develop both themes in greater detail. The meeting will address the broad themes of the underlying physics including the heating and physics of the solar corona and young solar wind, turbulence, switchbacks, shock waves and nonlinear processes, energetic particles, particle acceleration and transport in both the young solar wind and the distant solar wind, their impact and interaction with the outer heliosphere and the local interstellar medium. A characteristic theme in the AIAC is the universality of many of the physical processes that inform the solar wind and solar corona, and this remains a central element of the 21st AIAC. AIAC Director: Dr. Gary P. Zank Dr. Gary Zank received his Ph.D. in Applied Mathematics from the University of Natal in South Africa in 1987. Gary is an Eminent Scholar and Distinguished Professor, Director of Center for Space Plasma and Aeronomic Research (CSPAR), and Chair of the Department of Space Science (SPA) at The University of Alabama in Huntsville. Gary has been recognized in his field through the receipt of numerous honors and awards throughout his career. In 2017, he was named the University of Alabama Board of Trustees Trustee Professor, the first and only University of Alabama System faculty member to achieve this position. In part, this was in recognition of Dr Zank being elected in 2016 as a Member of the US National Academy of Sciences, the only person in AL to be a member of this august body. Meeting Location Turin, Italy, has a historical connection to the field of space physics through its Turin Astrophysical Observatory (Osservatorio Astrofisico di Torino). Established in the 18th century, this observatory has played a pivotal role in the study of astrophysics and space-related research. While not exclusively focused on space physics, the observatory has been instrumental in advancing our understanding of the universe, making important contributions to the field of astronomy. Additionally, Turin boasts a rich historical heritage, with its architectural landmarks, including the iconic Mole Antonelliana, which once housed an important telegraph station used for astronomical observations and research, underscoring the city's enduring connection to scientific exploration and space-related activities. Alenia Space, situated in Torino, is a prominent aerospace company renowned for its expertise in satellite and space exploration technology, contributing significantly to Italy's role in the global space industry.