More astrophysics illustrations

Astrophysics

Gaseous nebula

Astrophysics

Spectral line absorption

Astrophysics

Radiating wave symbol

Astrophysics

Inertial coordinate system

Astrophysics

Background radiation cosmic

Astrophysics

Milky way central bar

Astrophysics

Bell curve graph

Astrophysics

Scale factor vs time plot standard cosmology