The Cosmic Distance LadderExplores the Variable Universe through the Cosmic Distance Ladder, focusing on standard candles and the Hubble constant tension.
HII Regions: Ionising StarsExplores HII regions in the interstellar medium and the characteristics of ionising stars, including their luminosity and lifetime.
The Sun: Fusion ReactorDelves into the Sun as a fusion reactor, discussing properties, fusion process, and photon diffusion.