Explores the expansion and Hubble law in astrophysics, covering the Hubble constant, cosmological redshift, critical density, and cosmic background radiation.
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 luminosity distance, the Einstein field equation, Stephen Hawking's contributions, and the cosmological principle, among other cosmological concepts.
Discusses the inflationary theory as a solution to initial condition problems in the universe, covering scalar fields, density perturbations, and basic equations.
Explores evidence for dark matter in galactic rotation curves and clusters, as well as cosmological concepts like the Robertson-Walker metric and inflation.
