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A field that studies the structure, behavior, and dynamics of networks—systems of nodes connected by edges—across physics, biology, sociology, technology, and beyond. Network science reveals that the structure of connections determines how systems behave: how diseases spread, how information goes viral, how power concentrates, how organizations function, how ecosystems survive. It's the science of relationships, showing that the architecture of who is connected to whom matters as much as the properties of individual nodes. From social networks to neural networks, from supply chains to the internet, network science provides the tools for understanding connectivity, resilience, vulnerability, and the small-world phenomena that make the world both deeply connected and surprisingly fragile.
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