This self-contained astrophysics textbook for advanced undergraduates explores how stars form, what happens to them as they age, and what becomes of them when they die, with particular emphasis on nucleosynthesis at different stages. It examines the relationship between different stages of stellar evolution and the production of the chemical elements. Stellar Evolution and NucleosynthesisIntroducing advanced undergraduates to basic geometric concepts, such as metrics, connections and curvature, this textbook covers the key ideas of special and general relativity together with their applications. It shows the observational evidence supporting the theory, and the description general relativity provides of black holes and cosmological space-times.Covering host systems of accreting, relativistic bodies, and the high-energy phenomena associated with them, this textbook introduces advanced undergraduates to the astrophysical principles associated with the high-energy phenomena of accreting, relativistic bodies. It provides the essential background for an up-to-date discussion of modern observational cosmology.For the first time, the methods used in the detection and characterisation of exoplanets are presented in a textbook for advanced undergraduates. From determining the atmospheric properties of transiting exoplanets to measuring the planetary orbit’s alignment with the stellar spin, students will learn how these methods have reinvigorated theories of planet formation and evolution.Providing a comprehensive and up-to-date treatment of observational cosmology, this advanced undergraduate textbook enables students to use quantitative physical methods to understand the Universe. It covers recent developments and explores the future missions likely to dominate cosmological research in the future.