Explores the impact of COVID-19 on astronomy and the European Southern Observatory, delves into the Friedmann equations, and discusses the concept of dark energy.
Explores quantum fluctuations, inflation prediction, cosmological parameters, and structure formation in the universe, including dark matter instabilities and N-body simulations.
Covers the basics of quantum field theory, emphasizing the transition from classical to quantum descriptions and the role of fields in mediating interactions.
Covers gravitational lensing in astrophysics, including deflection angle, Einstein radius, lens solution, and its application to galaxies and the universe.
