Eric J. Chaisson is an American astrophysicist and science educator best known for his research, teaching, and writing on the interdisciplinary science of cosmic evolution. (Closely related subjects include epic of evolution, big history, and astrobiology). He is also noted for his original research on the interstellar clouds and emission nebulae of the Milky Way Galaxy, and for his leadership in improving science education nationally and internationally. He conducts research at the Harvard-Smithsonian Center for Astrophysics and teaches natural science at Harvard University.
Chaisson earned his PhD at Harvard in 1972 and has since held appointments at the Harvard-Smithsonian Center for Astrophysics, Johns Hopkins University, Space Telescope Science Institute, and most recently Tufts University, where he was for nearly 20 years director of the Wright Center for Science Education while holding research professorships in the department of physics and in the school of education. He is now back at the Harvard College Observatory and also serves with the Faculty of Arts and Sciences at Harvard, where he teaches an annual undergraduate course on the subject of cosmic evolution.
This AoT graphic is a high-resolution image of the opening page of a huge multi-media web site on Cosmic Evolution: From Big Bang to Humankind, which contains text, images, animations, movies, and hyperlinked references of interest to both non-scientists (Introductory Track) and professional scientists (Advanced Track).
Chaisson has published nearly 200 papers in professional journals and written a dozen books, several of which have won awards, such as the B.J. Bok Prize (Harvard) for astronomical discoveries, the Smith-Weld Prize (Harvard) for literary merit, and the Kistler Award for increasing understanding of subjects shaping the future of humanity. He has also won scholarly prizes from Phi Beta Kappa and the American Institute of Physics, a Certificate of Merit from NASA for work on the Hubble Space Telescope, as well as fellowships from the Sloan Foundation and the National Academy of Sciences.
Chaisson's major research interests are twofold: His scientific research addresses an interdisciplinary, thermodynamic study of physical, biological, and cultural phenomena, seeking to understand the origin and evolution of galaxies, stars, planets, life, and society, thus devising a unifying cosmic-evolutionary worldview of the Universe and our sense of place within it writ large. His educational work engages master teachers and computer animators to create better methods, technological aids, and novel curricula to enthuse teachers, instruct students, and enhance scientific literacy of everyone from grade school to grad school. 
- Big History
- Epic of Evolution
- Two short movies, big-bang-to-humankind, treating time linearly and logarithmically: Arrow of Time / Cosmic Origins
- A brief synopsis on YouTube of talks recently given in Moscow: Cosmos & Culture
- Representative sample of recent research articles: Current Research
- Syllabus of course at Harvard: Current Teaching
- "A Unifying Concept for Astrobiology," International Journal of Astrobiology, v 2, p 91, 2003.
- "Complexity: An Energetics Agenda," Complexity, v 9, p 14, 2004.
- "The Great Unifier," New Scientist, v 189, p 36, 2006.
- "Long-Term Global Heating from Energy Usage," Eos Transactions, American Geophysical Union, v 89, p 253, 2008.
- "Exobiology and Complexity," published in 11-volume, Encyclopedia of Complexity and Systems Science, R, Myers (ed.), p 3268, Springer, Berlin, 2009.
- "Energy Rate Density as a Complexity Metric and Evolutionary Driver," Complexity, v 16, p 27, 2011.
- "Energy Rate Density. II. Probing Further a New Complexity Metric," Complexity, v 17, p 44, 2011.
- "Rhythm of the Cosmos: Finding Unity among the Natural Sciences", Tufts Magazine, p 16, Spring, 2001.
- Cosmic Evolution: Rise of Complexity in Nature, Harvard Univ. Press, 2001. ISBN 0-674-00987-8
- Epic of Evolution: Seven Ages of the Cosmos, Columbia Univ. Press, 2006. ISBN 0-231-13561-0
- Astronomy Today (co-authored with S. McMillan), Pearson, 8 editions, 1993-2013.