Our journal is dedicated to becoming the premier platform for research specifically centered on diatoms, which play a crucial role in various ecosystems spanning from marine to freshwater environments. We aim to foster interdisciplinary studies that delve deep into the biology, ecology, and evolutionary history of diatoms, as well as their interactions within microbial communities and their significant contributions to Earth's biogeochemical cycles. We encourage submissions that explore molecular investigations of diatom cellular processes, genetic variations, and their responses to environmental changes. Research that offers insights into the role of diatoms in marine and freshwater food webs, their importance in global carbon and silicon cycles, or their potential applications in biotechnology and other industries is particularly welcomed. Understanding that diatom research intersects with various scientific disciplines, we invite contributions from areas like marine biology, plant science, microbiology, and environmental sciences. As champions of open science, we welcome authors worldwide to share their empirical findings, cutting-edge methodologies, and comprehensive reviews on all facets of diatomology. Through our commitment to rigorous peer-review, transparency, and the free exchange of ideas, we aim to advance the understanding of diatoms, their significance, and their myriad applications, thereby enhancing global scientific knowledge and environmental awareness.