 Here are two nebula drifting through the Sagittarius arm of our Milky Way Galaxy. The nebula on the right is called the Statue of Liberty, or torch bearer. It's 9,000 light years away. The nebula on the left, NGC 3603, is actually 11,000 light years further away than that. It is classified as a giant H2 region. In fact, it's the largest nebula in the Milky Way. We'll cover it in more detail at the end of this segment. NGC 3576's delicate loops around the statue are approximately 100 light years wide and are caused by material being blown outwards by the intense radiation pressure from young stars in the center of the nebula. Most of these stars are hidden from our view in the bright area at the base of the loops.