The interacting galaxy pair M51 and NGC 5195. Gravitational forces have shaped the Whirlpool Galaxy’s prominent spiral...

Whirlpool Galaxy (M51)

The interacting galaxy pair M51 and NGC 5195. Gravitational forces have shaped the Whirlpool Galaxy’s prominent spiral arms and triggered regions of active star formation. Photo © copyright by Gedaliah Wolosh.

Related Galleries: From Microns to Light Years