Spiral Galaxy M101 - NASA's Great Observatories

Spiral Galaxy M101 - NASA's Great Observatories The galaxy Messier 101 is a swirling spiral of stars, gas, and dust. Messier 101 is nearly twice as wide as our Milky Way Galaxy.Spitzer's view [left frame], taken in infrared light, reveals the galaxy's delicate dust lanes as yellow-green filaments. Such dense dust clouds are where new stars can form. In this image, dust warmed by the light of hot,