More astrophysics illustrations

Astrophysics

Surface velocity arrow

Astrophysics

Subsurface ocean

Astrophysics

Electron upward transition

Astrophysics

Narrow line region biconical

Astrophysics

Hydrogen envelope

Astrophysics

Comet dirty snowball

Astrophysics

Elliptical cross section

Astrophysics

Planetary orbiter