The Laser Interferometer Gravitational-Wave Observatory (LIGO) is a large-scale physics experiment and observatory designed to detect cosmic gravitational waves and to develop gravitational-wave observations as an astronomical tool. Two large observatories were built in the United States with the aim of detecting gravitational waves by laser interferometry. These observatories use mirrors spaced four kilometers apart which are capable of detecting a change of less than one ten-thousandth the charge diameter of a proton.
Kip Stephen Thorne is an American theoretical physicist known for his contributions in gravitational physics and astrophysics. A longtime friend and colleague of Stephen Hawking and Carl Sagan, he was the Richard P. Feynman Professor of Theoretical Physics at the California Institute of Technology (Caltech) until 2009 and speaks of the astrophysical implications of general theory of relativity. He continues to do scientific research and scientific consulting, most notably for the Christopher Nolan film Interstellar. Thorne was awarded the 2017 Nobel Prize in Physics along with Rainer Weiss and Barry C. Barish "for decisive contributions to the LIGO detector and the observation of gravitational waves".
Rainer "Rai" Weiss is an American physicist, known for his contributions in gravitational physics and astrophysics. He is a professor of physics emeritus at MIT and an adjunct professor at LSU. He is best known for inventing the laser interferometric technique which is the basic operation of LIGO. He was Chair of the COBE Science Working Group.
Gravitational waves are waves of the intensity of gravity generated by the accelerated masses of an orbital binary system that propagate as waves outward from their source at the speed of light. They were first proposed by Oliver Heaviside in 1893 and then later by Henri Poincaré in 1905 as waves similar to electromagnetic waves but the gravitational equivalent.
Gravitational-wave astronomy is an emerging field of science, concerning the observations of gravitational waves to collect relatively unique data and make inferences about objects such as neutron stars and black holes, events such as supernovae, and processes including those of the early universe shortly after the Big Bang.
Nergis Mavalvala is a Pakistani-American astrophysicist. She is the Curtis and Kathleen Marble Professor of Astrophysics at the Massachusetts Institute of Technology (MIT), where she is also the Dean of the university's School of Science. She was previously the Associate Head of the university's Department of Physics. Mavalvala is best known for her work on the detection of gravitational waves in the Laser Interferometer Gravitational-Wave Observatory (LIGO) project, and for the exploration and experimental demonstration of macroscopic quantum effects such as squeezing in optomechanics. She was awarded a MacArthur Fellowship in 2010.
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.
Maura McLaughlin Ph.D. is currently an astrophysics professor at West Virginia University in Morgantown, West Virginia. She holds a Bachelor's of Science degree from Pennsylvania State University and a Ph.D. from Cornell University. She is known for her work on furthering the research on gravitational waves and for her dedication to the Pulsar Search Collaboratory. She was named a Fellow of the American Physical Society in 2021.
Ethan R. Siegel is an American theoretical astrophysicist and science writer, who studies the Big Bang theory. In the past he has been a professor at Lewis & Clark College and a blogger at Starts With a Bang, on ScienceBlogs and also on Forbes.com since 2016.
Katherine J. Mack is a theoretical cosmologist who holds the Hawking Chair in Cosmology and Science Communication at Perimeter Institute. Her academic research investigates dark matter, vacuum decay and the epoch of reionisation. Mack is also a popular science communicator who participates in social media and regularly writes for Scientific American, Slate, Sky & Telescope, Time, and Cosmos.
Marica Branchesi is an Italian astrophysicist. Her leadership and scientific work was pivotal for Virgo/LIGO's discovery of gravitational waves. She is vice president of International Astronomical Union Gravitational Wave Astrophysics Commission and member of the Gravitational Wave International Committee.
Chiara Mingarelli is an Italian-Canadian astrophysicist who researches gravitational waves. She is an associate research scientist at the Flatiron Institute Center for Computational Astrophysics and an assistant professor of physics at the University of Connecticut. She is also a science writer and communicator.
Samaya Michiko Nissanke is an astrophysicist, associate professor in gravitational wave and multi-messenger astrophysics and the spokesperson for the GRAPPA Centre for Excellence in Gravitation and Astroparticle Physics at the University of Amsterdam. She works on gravitational-wave astrophysics and has played a founding role in the emerging field of multi-messenger astronomy. She played a leading role in the discovery paper of the first binary neutron star merger, GW170817, seen in gravitational waves and electromagnetic radiation.
Eleonora Troja is an Italian astrophysicist. In 2017 she led the discovery of X-ray emission from the gravitational wave source GW170817.
Karan Jani is an Indian astrophysicist working on black holes, gravitational waves, and testing Albert Einstein's General Theory of Relativity. He is part of the LIGO team which led to the first observation of gravitational waves from binary black hole merger. He was one of the approximately 1200 authors of a paper on the subject in Physical Review D He was also one of the 3 authors of a paper in Nature reporting a specific approach for observing an elusive class of black holes called Intermediate black holes. He has worked at the LIGO Livingston Observatory in the US, the Albert Einstein Institute in Germany, the Georgia Institute of Technology, and the Perimeter Institute for Theoretical Physics in Canada. He is a member of the Indian Initiative in Gravitational-wave Observations effort to build gravitational wave detector LIGO in India.
Brittany Lehua Kamai is an American astrophysicist and racial justice activist. Kamai is a postdoctoral fellow at the University of California, Santa Cruz and the California Institute of Technology. She was the founder of #ShutDownSTEM, part of the Strike for Black Lives held on June 10, 2020. A native Hawaiian, Kamai grew up in Honolulu and graduated from President Theodore Roosevelt High School and the University of Hawaiʻi at Mānoa. She completed her Master of Arts from Fisk University and her PhD from Vanderbilt University. Kamai is only the second native Hawaiian to earn a doctorate in astrophysics and the third to earn a PhD in physics.
Selma de Mink is a Dutch astrophysicist specializing in evolution of stars, stellar binary systems and compact objects, including black holes. She is a scientific director at the Max Planck Institute for Astrophysics in Garching near Munich, Germany.
Rana X. Adhikari is an American experimental physicist. He is a professor of physics at the California Institute of Technology (Caltech) and an associate faculty member of the International Centre for Theoretical Sciences of Tata Institute of Fundamental Research (ICTS-TIFR).
Alessandra Corsi is an Italian astronomer known for her work as part of the LIGO Scientific Collaboration on gravitational-wave astronomy, and on multi-messenger astronomy combining gravitational and electromagnetic signals. She is an associate professor of physics and astronomy at Texas Tech University.
Laura Cadonati is an American physicist who specializes in gravitational waves.
