Unformatted text preview: Explain communication problem across vast distances (e.g., delay in talking with Mars Rovers, etc.). 5. The Local Group of Galaxies -- about 30 galaxies in a loose grouping -- MW and M31 largest -- diameter about 5 million light years. 6. The Local Supercluster -- thousands of galaxies (about 300 million light years across). 7. Universe -- about 30 billion light years across....
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- Spring '11
- Astronomical, Local Group of Galaxies, Explain communication problem, Astronomical Address, orbit diameter