Explores the fundamental problem of distance in astronomy and discusses various methods for distance measurement, including wide-angle astrometry and detached eclipsing binary distances.
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 the recalibration of the cosmic distance ladder using accurate photometry and Gaia parallaxes, addressing challenges and potential refinements.
