Ice and Stone 2020 is a topic of interest, with related information available in a companion glossary. The subject appears to be connected to comets, with various comets being highlighted, including Lovejoy C/2011 W3, Delavan 1913f, 12P/Pons-Brooks, Tago-Sato-Kosaka 1969g, and Hyakutake C/1996 B2. The topic also encompasses special subjects such as deflection strategies and solar eclipse comets.