Thin line of stars and dust and gas, the side view of a galaxy. This galaxy is diagonal across the image, with the blackness of space behind it.

C23 – Hubble Caldwell 23

Spanning some 100 000 light-years, Caldwell 23 is seen exactly edge-on, revealing its thick plane of dust and interstellar gas.

Credits: ESA/Hubble & NASA; Acknowledgment: Nick Rose