This talk will take its starting point in the on-going convergence of exploratory and explanatory visualization paradigms. Based on the general availability of processing power, access to data and ever improving visualization methods, explanatory visualization can be data driven and fully interactive. This leads to a paradigm shift in visual learning and communication, enabling a new generation of installations and demonstrations at public venues such as, museums, and science centers. At the same time, explanatory methods can pave the path for new approaches to exploration and workflows for domain experts, and also improve internal team communication. The talk will elaborate on how the cycle from exploratory to explanatory visualization can be closed, leading to notion of "exploranation". The talk will use many examples and interactive demonstrations to illustrate the introduced concepts. Direct volumetric rendering on of high resolution and dynamic data from medical scanning modalities will show human anatomy and function, and specimens from collections at museums, such as insects and flowers, will be virtually dissected. The talk will then discuss the issues involved in visualization of the micro cosmos using novel visualization and interaction devices, such as haptic force feedback for molecular exploration as well as large scale immersive visualization on dome theaters.