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This Comment describes some of the common pitfalls encountered in deriving and validating predictive statistical models from high-dimensional data. It offers a fresh perspective on some key statistical issues, providing some guidelines to avoid pitfalls, and to help unfamiliar readers better assess the reliability and significance of their results.
Space missions require materials that can preserve functional integrity under extreme conditions of heat, impact and radiation. This Comment outlines the materials properties needed for some of the most ambitious space missions and presents the design and testing principles before their incorporation.
Solar cells based on metal halide perovskites continue to approach their theoretical performance limits thanks to worldwide research efforts. Mastering the materials properties and addressing stability may allow this technology to bring profound transformations to the electric power generation industry.
