 The most interesting nebulae, in the Milky Way, are made up of all three types, emission, reflection, and dark. So let's take a look at some of these scattered across our galaxy. The clouds surrounding the star system Ro Ofiyuki, or Ro Of for short, is one of our closest star-forming regions. Ro Of itself is a binary star system visible in the light-colored region on the right side of the image. The star system is distinguished by its colorful surroundings, which include a red emission nebula and numerous light and dark brown dust lanes around five light years wide. Near the image bottom lies the blue horse head nebula. The blue glow that surrounds the blue horse head's eye is a reflection nebula. You can't see the stars behind the clouds in visible light, but X-ray and infrared brings them into view. The bright pink objects are young stellar objects. These baby stars are just now forming. Many of them are still enveloped in their own tiny compact cloud called their baby blanket. There are more than 300 young stellar objects within the large central cloud. Their medium age is only 300,000 years. And that's very young compared to some of the universe's oldest stars, which are 12 to 13 billion years old.