here some nebula facts !

• Nebula are always in motion, even though they look quiescent in images. The clouds mix and churn, which creates magnetic fields.

• There are several types of molecular clouds: dark globules, emission nebula, and reflection nebula. Emission nebulae glow as their gases are heated. Reflection nebula are mostly dust which reflects the light from nearby stars.

• Our Sun and planets formed in a nebula some 4.5 billion years ago.

• Nebula exist in other galaxies. Astronomers have observed them in all spirals as well as the nearby Magellanic Clouds.