Galaxy Composition Astrophysics Universe Formation Galaxy Composition Questions What is the Large Magellanic Cloud? What are Magellanic clouds? How were they discovered? Are galaxies visible in the night sky? How were the Magellanic clouds formed? What are the Magellanic clouds composed of? What are accretion disks? How do the basic galaxy types differ in shape, stellar content, and interstellar matter? Did the bulge or disk of the galaxy form first? How is this determined? Why does the Milky Way Galaxy's nuclear bulge contain many red giants and supergiants as opposed to dwarfs and other stars? What is a galaxy's bulge? What is the oldest part of a galaxy? Which types of galaxies have a clearly defined disk component? What is an irregular galaxy? How does the composition between irregular, spiral, and elliptical galaxies compare? How are irregular galaxies classified? How are irregular galaxies created? How big are irregular galaxies? Where is intracluster medium found? What is intracluster medium? What is a supercluster? Why do astronomers theorize that most of the matter in galaxies and clusters of galaxies is dark matter? How are galaxies clusters and superclusters different? How are galaxies star clusters and nebulae different? Why do galaxies form clusters? Where are open clusters found in our galaxy? Compare and contrast the properties of open clusters and globular clusters. How are they similar? How are they different? What are the characteristics of an open cluster of stars? How big are open clusters? How many stars can be found in an average open cluster? What is a radio galaxy? Where is the Oort Cloud located and what do we believe comes from it? What is the difference between the Kuiper Belt and the Oort Cloud? If the Oort cloud extends half way to Alpha Centauri, wouldn't this mean that the Centauri system's cloud would intersect ours? Does the Oort cloud rotate? Or is it static? Does the Oort cloud exist? If so, why can't we see it? Are there planets in the Andromeda Galaxy? If so how many? Could life be sustainable there? What is zodiacal dust? What is the dust cloud in our solar system that will block out our sun light called? When can the zodiacal light be seen during the night? Can life form in Elliptical and Irregular galaxies? What does an elliptical galaxy contain? What is the evidence that suggests planetary systems are common in the universe? In what ways to extrasolar planetary systems differ from our own solar system? How many solar systems are in the Milky Way Galaxy? What are the hottest and coldest places in the solar system? Question #7c745 Question #f6e4c What is dark matter? Universe Formation View all chapters Planet Composition Galaxy Composition Nebulae Composition Big Bang and Universe Evolution Prev Next