20. Galaxy Interaction and Motion

Description

Part 20: Galaxy clusters, collisions, and ubiquitous recession from one another. These short videos were created in August 2007 by Dr. Christopher D. Impey, Professor of Astronomy at the University of Arizona, for his students. They cover a broad range of terms, concepts, and princples in astronomy and astrobiology. Dr. Impey is a University Distinguished Professor and Deputy Head of the Astonomy Department. All videos are intended solely for educational purposes and are licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. The full list of collections follows below: 01. Fundamentals of Science and Astronomy 02. Ancient Astronomy and Celestial Phenomena 03. Concepts and History of Astronomy and Physics 04. Chemistry and Physics 05. Quantum Theory and Radiation 06. Optics and Quantum Theory 07. Geology and Physics 08. Solar Neighborhood and Space Exploration 09. Outer Planets and Planetary Atmospheres 10. The Solar System 11. Interplanetary Bodies 12. Formation and Nature of Planetary Systems 13. Particle Physics and the Sun 14. Stars 1 15. Stars 2 16. Stars 3 17. Galactic Mass Distribtuion and Galaxy Structure 18. Galaxies 19. Galaxies 2 20. Galaxy Interaction and Motion 21. Deep Space and High-Energy Phenomena 22. The Big Bang, Inflation, and General Cosmology 23. The Big Bang, Inflation, and General Cosmology 2 24. Chemistry and Context for Life 25. Early Earth and Life Processes 26. Life on Earth 27. Life in the Universe 28. Interstellar Travel, SETI, and the Rarity of Life 29. Prospects of Nonhuman Intelligences