The Milky way
If you could look down on the Milky way galaxy from above, view would be like flying over glittering city at night. Most of galaxies 200 billion stars are in the central bluge. Curving around this are you washed spiral arms and several smaller arms. The milky way is thought to be barred spiral, but we can't see its shape clearly from Earth as we view it from the inside. In the night sky the Milky way appears only as a milky band of light.
1 Galactic center
This photo from an infrared telescope shows stars and gas clouds packing the center of the Milky way to stop a supermassive black hole lies hidden somewhere in this area.
2. Solar system
Our solar system is in a minor spiral arm called the Orion arm. We orbit the center of the galaxy once every 200 million travelling at about 200 km second
3 crab nebula
Clouds of gas and dust occur throughout the Milky way, especially in the spiral arms. The crab nebula is a cloud of be Wreckage left behind by a dying star that exploded.
4. Global cluster
Not all the Milky ways stars are in the main disc of the galaxies. Mini are in the global cluster tightly packed balls of ancient stars floating above and below the galaxy in the spiral region called halo.
Fact
200 billion the approximate number of stars in the Milky way galaxy
Fact
7 trillion the approximate number of galaxies in the observable universe.
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