Rust is a systems programming language created by Mozilla in 2010, designed to provide C-level performance while guaranteeing memory safety without a garbage collector through its ownership system. Used across operating systems, embedded devices, web services, and blockchain infrastructure, Rust prevents entire classes of bugs at compile time through its borrow checker. Understanding Rust isn't just about syntax—it's about embracing ownership thinking, recognizing when to use references versus smart pointers, and leveraging the type system to eliminate runtime errors before deployment.