A planetary nebula is a type of emission nebula consisting of an expanding, glowing shell of ionized gas ejected from red giant stars late in their lives.
The Astrophysical Journal (ApJ) is a peer-reviewed scientific journal of astrophysics and astronomy, established in 1895 by American astronomers George Ellery Hale and James Edward Keeler. The journal discontinued its print edition and became an electronic-only journal in 2015.
The American Astronomical Society is an American society of professional astronomers and other interested individuals, headquartered in Washington, DC. The primary objective of the AAS is to promote the advancement of astronomy and closely related branches of science, while the secondary purpose includes enhancing astronomy education and providing a political voice for its members through lobbying and grassroots activities. Its current mission is to enhance and share humanity's scientific understanding of the universe as a diverse and inclusive astronomical community.
Christopher Fulton McKee is an astrophysicist.
Donald Edward Osterbrock was an American astronomer, best known for his work on star formation and on the history of astronomy.
Michael S. Turner is an American theoretical cosmologist who coined the term dark energy in 1998. He is the Rauner Distinguished Service Professor Emeritus of Physics at the University of Chicago, having previously served as the Bruce V. & Diana M. Rauner Distinguished Service Professor, and as the assistant director for Mathematical and Physical Sciences for the US National Science Foundation.
David Nathaniel Spergel is an American theoretical astrophysicist and the Emeritus Charles A. Young Professor of Astronomy on the Class of 1897 Foundation at Princeton University. Since 2021, he has been the President of the Simons Foundation. He is known for his work on the Wilkinson Microwave Anisotropy Probe (WMAP) project. In 2022, Spergel accepted the chair of NASA's UAP independent study team.
Claire Ellen Max is a Professor of Astronomy and Astrophysics at the University of California, Santa Cruz (UCSC) and is affiliated with the Lick Observatory. She was the Director of the Center for Adaptive Optics at UCSC, 2007-2014. Max received the E.O. Lawrence Award in Physics.
Roger David Blandford, FRS, FRAS is a British theoretical astrophysicist, best known for his work on black holes.
Bruce Thomas Draine is an American astrophysicist. He is Professor of Astrophysical Sciences at Princeton University.
Lennox Lauchlan Cowie FRS is a British astronomer, and professor at the Institute for Astronomy, University of Hawaiʻi.
Donald Blair Melrose FAA is an Australian theoretical physicist, Rhodes Scholar and laureate of the Chandrasekhar prize in Plasma Physics.
Guido Münch Paniagua was a Mexican astronomer and astrophysicist.
Lars Bildsten is an American astrophysicist, best known for his work on the physics of white dwarfs and their explosions as Type Ia supernovae. He is the sixth director of the Kavli Institute for Theoretical Physics at the University of California, Santa Barbara (UCSB) and a professor in the UCSB Physics Department.
Steven Andrew Balbus is an American-born astrophysicist who is the Savilian Professor of Astronomy at the University of Oxford and a professorial fellow at New College, Oxford. In 2013, he shared the Shaw Prize for Astronomy with John F. Hawley.
Bruce Gordon Elmegreen is an American astronomer.
Kristen Sellgren is an American retired astronomer and Professor Emerita at the College of Natural and Mathematical Sciences, Ohio State University. She won the Newton Lacy Pierce Prize in Astronomy in 1990. She is the founder of American Astronomical Society's Committee for Sexual-Orientation & Gender Minorities in Astronomy (SGMA).
Vassiliki Kalogera is a Greek astrophysicist. She is a professor at Northwestern University and the director of the Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA). She is a leading member of the LIGO Collaboration that observed gravitational waves in 2015.
Andrew Collier Cameron is a British astronomer specialising in the discovery and characterisation of exoplanets. He is a founding co-investigator of the WASP project and served as the head of the School of Physics and Astronomy of the University of St Andrews between 2012 and 2015 where he is currently a professor.
Charles Robert O'Dell is an American observational astronomer and the founding Project Scientist of the Hubble Space Telescope. He is currently the Distinguished Research Professor of Astrophysics at Vanderbilt University and Andrew Hayes Buchanan professor of Astrophysics (emeritus) at Rice University.
