Eric J. Chaisson (pronounced chase-on, born on October 26, 1946, in Lowell, Massachusetts) is an American astrophysicist known for his research, teaching, and writing on the interdisciplinary science of cosmic evolution. He is a member of the Center for Astrophysics | Harvard & Smithsonian, teaches natural science at Harvard University and is an elected Fellow of the American Association for the Advancement of Science. [1]
He has published nearly 200 peer-reviewed articles in science journals on topics including interstellar clouds and nebulae [2] [3] as well as the supermassive black hole at the center of the Milky Way Galaxy, [4] [5] complexity science utilizing the innovative concept of energy rate density, [6] [7] waste heating effects on climate change, [8] [9] [10] and astrobiology of life in the Universe. [11] [12] He also seeks to unify natural science [13] [14] and works to improve science education nationally and internationally. [15] [16]
Chaisson graduated in physics from University of Massachusetts Lowell in 1968 and earned his PhD at Harvard in 1972. He has held professorial appointments at the Center for Astrophysics | Harvard & Smithsonian, Johns Hopkins University, Space Telescope Science Institute, and Tufts University, where he was for 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 where, in semi-retirement, he teaches one course each year and works with colleagues at the allied Smithsonian Astrophysical Observatory.
He was commissioned an officer in the U.S. Air Force at Lackland Air Base in 1970, served on active duty and in the reserves mainly at Mildenhall RAF base and Hanscom USAF base until 1986, after which he was honorably discharged at the rank of captain. He took leave from academia in 1986 at MIT Lincoln Laboratory as staff physicist working on ballistic missile defense amidst occasional consulting and advising for many years with the military-intelligence community. [17] He spent sabbaticals in the 1980s at Wellesley and Haverford colleges, in 1996 was visiting scholar and national lecturer for Phi Beta Kappa, and in 2018 worked on solar energy as visiting professor at University of Notre Dame and Distinguished Fellow at its Institute for Advanced Study. [18]
Chaisson’s research and writing have won several awards, such as the 1977 B.J. Bok Prize [19] for “original radio-astronomy discoveries,” the 1980 Smith-Weld Prize [20] for “best article by a Harvard faculty member,” a 1990 (and 1994) certificate of recognition from NASA with U.S. flag flown aboard the Space Shuttle-31 mission for “exceptional performance on the Hubble Space Telescope program,” [21] [22] as well as unsought fellowships from the Sloan Foundation and the National Academy of Sciences.
His 2018 election to the rank of AAAS Fellow noted his "research and teaching contributions to astrophysics, including co-authoring the nation's most widely used astronomy textbook." He was also a finalist nominee for the 2024 Smithsonian Secretary's national Achievement Award for "consistent and outstanding performance in educational programming that opens doors to lifelong learners, communities and educators elsewhere while serving the nation through distance learning, digital media, publications and exhibitions.”
His book Cosmic Dawn in 1982 received the Phi Beta Kappa Award in Science, the Science Writing Award of the American Institute of Physics and was a finalist for the National Book Award for Nonfiction. The Hubble Wars in 1995 also won the AIP’s Science Writing Award [23] and was hailed in the New York Times [24] as perhaps "the most readable and instructive book on the doing of science since James Watson wrote The Double Helix." Epic of Evolution won the 2007 Kistler Book Award [25] “for “increasing understanding of factors shaping the future of humanity.” And his textbook, Astronomy: The Universe at a Glance, won the Most Innovative New Textbook award in 2016 from the Textbook Authors Association.
In the 1990s, he co-produced and hosted the educational PBS (Maryland Intec) television series, Starfinder, highlighting Hubble Space Telescope discoveries and people, now freely available online at the American Archive of Public Broadcasting. [26]
Edwin Powell Hubble was an American astronomer. He played a crucial role in establishing the fields of extragalactic astronomy and observational cosmology.
Astronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos. It uses mathematics, physics, and chemistry in order to explain their origin and their overall evolution. Objects of interest include planets, moons, stars, nebulae, galaxies, meteoroids, asteroids, and comets. Relevant phenomena include supernova explosions, gamma ray bursts, quasars, blazars, pulsars, and cosmic microwave background radiation. More generally, astronomy studies everything that originates beyond Earth's atmosphere. Cosmology is a branch of astronomy that studies the universe as a whole.
Sandra Moore Faber is an American astrophysicist known for her research on the evolution of galaxies. She is the University Professor of Astronomy and Astrophysics at the University of California, Santa Cruz, and works at the Lick Observatory. She has made discoveries linking the brightness of galaxies to the speed of stars within them and was the co-discoverer of the Faber–Jackson relation. Faber was also instrumental in designing the Keck telescopes in Hawaii.
The Center for Astrophysics | Harvard & Smithsonian (CfA), previously known as the Harvard–Smithsonian Center for Astrophysics, is an astrophysics research institute jointly operated by the Harvard College Observatory and Smithsonian Astrophysical Observatory. Founded in 1973 and headquartered in Cambridge, Massachusetts, United States, the CfA leads a broad program of research in astronomy, astrophysics, Earth and space sciences, as well as science education. The CfA either leads or participates in the development and operations of more than fifteen ground- and space-based astronomical research observatories across the electromagnetic spectrum, including the forthcoming Giant Magellan Telescope (GMT) and the Chandra X-ray Observatory, one of NASA's Great Observatories.
Bryan Malcolm Gaensler is an Australian astronomer based at the University of California, Santa Cruz. He studies magnetars, supernova remnants, and magnetic fields. In 2014, he was appointed as Director of the Dunlap Institute for Astronomy & Astrophysics at the University of Toronto, after James R. Graham's departure. He was the co-chair of the Canadian 2020 Long Range Plan Committee with Pauline Barmby. In 2023, he was appointed as Dean of Physical and Biological Sciences at UC Santa Cruz.
The following outline is provided as an overview of and topical guide to astronomy:
Amy J. Barger is an American astronomer and Henrietta Leavitt Professor of Astronomy at the University of Wisconsin–Madison. She is considered a pioneer in combining data from multiple telescopes to monitor multiple wavelengths and in discovering distant galaxies and supermassive black holes, which are outside of the visible spectrum. Barger is an active member of the International Astronomical Union.
Robert P. Kirshner is an American astronomer, Chief Program Officer for Science for the Gordon and Betty Moore Foundation, and the Clownes Research Professor of Science at Harvard University. Kirshner has worked in several areas of astronomy including the physics of supernovae, supernova remnants, the large-scale structure of the cosmos, and the use of supernovae to measure the expansion of the universe.
Abraham "Avi" Loeb is an Israeli-American theoretical physicist who works on astrophysics and cosmology. Loeb is the Frank B. Baird Jr. Professor of Science at Harvard University, where since 2007 he has been Director of the Institute for Theory and Computation at the Center for Astrophysics. He chaired the Department of Astronomy from 2011 to 2020, and founded the Black Hole Initiative in 2016.
Herbert Gursky was the Superintendent of the Naval Research Laboratory's Space Science Division and Chief Scientist of the E.O. Hulburt Center for Space Research.
Leon P. Van Speybroeck was an American astronomer who served as Telescope Scientist for the Chandra X-Ray Observatory, which was launched into space aboard the Space Shuttle Columbia in 1998. Van Speybroek designed the mirrors that made possible its spectacular X-ray images of nearby and remote magical objects, including comets, exploding stars, jets of gas spewing from nearby black holes, and powerful quasars more than 10 billion light years from Earth. The data from Chandra prompted new discoveries about the evolution of galaxies, the nature of the black holes, dark matter, and the dimensions of the universe.
Caleb Asa Scharf is a British-American astronomer and popular science author. He is currently the senior scientist for astrobiology at the NASA Ames Research Center in Mountain View, California. He formerly served as the director of the multidisciplinary Columbia Astrobiology Center at Columbia University, New York.
Christopher J. Conselice is an astrophysicist who is Professor of Extragalactic Astronomy at the University of Manchester.
Adam Frank is an American physicist, astronomer, and writer. His scientific research has focused on computational astrophysics with an emphasis on star formation and late stages of stellar evolution. His work includes studies of exoplanet atmospheres and astrobiology. The latter include studies of the generic response of planets to the evolution of energy-intensive civilizations (exo-civilizations).
Christopher David Impey is a British astronomer, educator, and author. He has been a faculty member at the University of Arizona since 1986. Impey has done research on observational cosmology, in particular low surface brightness galaxies, the intergalactic medium, and surveys of active galaxies and quasars. As an educator, he has pioneered the use of instructional technology for teaching science to undergraduate non-science majors. He has written many technical articles and a series of popular science books including The Living Cosmos, How It Began, How It Ends: From You to the Universe, Dreams of Other Worlds, and Humble Before the Void. He served as Vice-President of the American Astronomical Society, he is a Fellow of the American Association for the Advancement of Science, and a Howard Hughes Medical Institute Professor. He serves on the Advisory Council of METI.
Natalie M. Batalha is professor of Astronomy and Astrophysics at UC Santa Cruz. Previously she was a research astronomer in the Space Sciences Division of NASA Ames Research Center and held the position of Science Team Lead, Mission Scientist, and Project Scientist on the Kepler Mission, the first mission capable of finding Earth-size planets around other stars. Before moving to NASA, Batalha was a Professor of Physics and Astronomy at San Jose State University.
Patrick Thaddeus was an American professor and finished his career as the Robert Wheeler Willson Professor of Applied Astronomy Emeritus at Harvard University. He is best known for mapping carbon monoxide in the Milky Way galaxy and was responsible for the construction of the CfA 1.2 m Millimeter-Wave Telescope.
Mercedes López-Morales is a Spanish-American astrophysicist at the Space Telescope Science Institute (STScI) in Maryland, who works on detection and characterization of exoplanet atmospheres.
G. Mark Voit is an American physicist and professor in the Department of Physics and Astronomy at Michigan State University. His most cited solely-authored paper is "Tracing Cosmic Evolution with Clusters of Galaxies", in Reviews of Modern Physics, at Michigan State University. He is an Elected Fellow of the American Association for the Advancement of Science. His research involves theoretical investigations of clusters of galaxies, galaxy evolution, and the role of supermassive black holes in galaxy evolution. Voit is an expert in the physics of astrophysical gas and dust.
Anne L. Kinney is an American space scientist and educator. Kinney is currently the Deputy Center Director at NASA Goddard Space Flight Center. Previously, she held positions as the head of the Directorate for Mathematical and Physical Sciences (MPS) for the National Science Foundation (NSF), the Chief Scientist of the W.M. Keck Observatory, Director of the Solar System Exploration Division at NASA Goddard Space Flight Center, Director of the Origins Program at NASA Jet Propulsion Laboratory, and Director of the Universe Division at NASA Headquarters. She earned a bachelor's degree in astronomy and physics from the University of Wisconsin-Madison and a doctorate in astrophysics from New York University, and has published more than 80 papers on extragalactic astronomy. She was an instrument scientist for the Faint Object Spectrograph that flew on the Hubble Space Telescope.