More astrophysics illustrations

Astrophysics

Galactic disk face on

Astrophysics

Moon sized planetesimal

Astrophysics

Galaxy rotation curve flat

Astrophysics

Spectral line split triplet

Astrophysics

Stellar disk limb darkened

Astrophysics

Actinium 227

Astrophysics

Ultraviolet radiation

Astrophysics

Circle with radius