More astrophysics illustrations

Astrophysics

Opacity kappa

Astrophysics

Observatory

Astrophysics

Emergent intensity beam

Astrophysics

Galactic bar

Astrophysics

Galileo galilei

Astrophysics

Stellar atmosphere plane parallel

Astrophysics

Radial velocity vector negative

Astrophysics

Radioactive isotope 44ti