Grey atmosphere

Gunn–Peterson trough

High Altitude Observatory

High energy density physics

{wiki=High_time-resolution_astrophysics}


High time-resolution astrophysics

Highly charged ion

Hydrogen anion

ICRANet

IRAP PhD Program

Illustris project

{wiki=Instituto_de_Astrofísica_de_Andalucía}


Instituto de Astrofísica de Andalucía

{wiki=International_Center_for_Relativistic_Astrophysics}


International Center for Relativistic Astrophysics

Iron peak

Isabella M. Gioia

Kavli Prize

Kvant-1

Lane–Emden equation

Mass-to-light ratio

Mass deficit

Mass segregation (astronomy)

{wiki=Astrophysics}

Astrophysics is a branch of astronomy that focuses on understanding the physical properties and underlying phenomena of celestial objects and the universe as a whole. It combines principles from physics and astronomy to study a wide range of topics, including the formation, evolution, and behavior of stars, galaxies, black holes, nebulae, and the overall structure of space-time.


Astrophysics

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 Children: Astrophysics