Eddington number

Eggshell planet

Ejecta

Ekpyrotic universe

{wiki=Enduring_Quests_and_Daring_Visions}


Enduring Quests and Daring Visions

ExoMol

Extragalactic cosmic ray

Fermi Gamma-ray Space Telescope

Fiske Planetarium

Flux tube

Fractal cosmology

Galactic Bridges and Tails

{wiki=Galaxy_H-Alpha_Fabry-Perot_System}


Galaxy H-Alpha Fabry-Perot System

Gas torus

Gauge vector–tensor gravity

{wiki=Graphical_timeline_of_the_Stelliferous_Era}


Graphical timeline of the Stelliferous Era

{wiki=Graphical_timeline_of_the_universe}


Graphical timeline of the universe

Gravitational compression

Gravitational lensing formalism

GravitySimulator

{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