More astrophysics illustrations

Astrophysics

Accretion column

Astrophysics

Hydrogen atom ground state

Astrophysics

Projection screen

Astrophysics

Observation point

Astrophysics

Helium 4 nucleus

Astrophysics

Upward arrow

Astrophysics

Radial velocity vector positive

Astrophysics

Outer halo