More astrophysics illustrations

Astrophysics

Hydrogen lyman alpha line

Astrophysics

Optically thin gas

Astrophysics

Rectangular coordinate unit vector k

Astrophysics

Optically thick gas

Astrophysics

Colorful semicircle

Astrophysics

Light switch

Astrophysics

K0 iv star

Astrophysics

Temperature gradient