The following outline is provided as an overview and topical guide to space science:
Astronomy is a natural science that studies celestial objects and phenomena. It uses mathematics, physics, and chemistry in order to explain their origin and 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.
Harlow Shapley was an American scientist, head of the Harvard College Observatory (1921–1952), and political activist during the latter New Deal and Fair Deal.
Jeremiah Paul "Jerry" Ostriker is an American astrophysicist and a professor of astronomy at Columbia University and is the Charles A. Young Professor Emeritus at Princeton where he also continues as a senior research scholar. Ostriker has also served as a university administrator as Provost of Princeton University.
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.
David Darling is an English astronomer, freelance science writer, and musician. Darling has published numerous popular science works, including Life Everywhere: The Maverick Science of Astrobiology in 2001 and The Universal Book of Mathematics in 2004. He maintains the online Internet Encyclopedia of Science.
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 2011–2020, 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.
Eric J. Chaisson 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.
Jeff Kanipe is an American science writer and author of astronomy books.
Dr. Kimberly A. Weaver is an American astrophysics astronomer and professor. She has worked with NASA on several research projects. She is often seen on television programs about astronomy. She is an expert in the area of x-ray astronomy.
George Musser is a contributing editor for Scientific American magazine in New York and the author of The Complete Idiot’s Guide to String Theory and of Spooky Action at a Distance.
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.
Technosignature or technomarker is any measurable property or effect that provides scientific evidence of past or present technology. Technosignatures are analogous to biosignatures, which signal the presence of life, whether intelligent or not. Some authors prefer to exclude radio transmissions from the definition, but such restrictive usage is not widespread. Jill Tarter has proposed that the search for extraterrestrial intelligence (SETI) be renamed "the search for technosignatures". Various types of technosignatures, such as radiation leakage from megascale astroengineering installations such as Dyson spheres, the light from an extraterrestrial ecumenopolis, or Shkadov thrusters with the power to alter the orbits of stars around the Galactic Center, may be detectable with hypertelescopes. Some examples of technosignatures are described in Paul Davies's 2010 book The Eerie Silence, although the terms "technosignature" and "technomarker" do not appear in the book.
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.
The Nexus for Exoplanet System Science (NExSS) initiative is a National Aeronautics and Space Administration (NASA) virtual institute designed to foster interdisciplinary collaboration in the search for life on exoplanets. Led by the Ames Research Center, the NASA Exoplanet Science Institute, and the Goddard Institute for Space Studies, NExSS will help organize the search for life on exoplanets from participating research teams and acquire new knowledge about exoplanets and extrasolar planetary systems.
Elizabeth J. Tasker is a British astrophysicist and science writer.
Grant Tremblay is an American astrophysicist notable for research on supermassive black holes, science communication, and public advocacy for large space telescopes. He is currently an Astrophysicist at the Harvard-Smithsonian Center for Astrophysics, and was formerly a NASA Einstein Fellow at Yale University, a Fellow at the European Southern Observatory (ESO), and an Astronomer at ESO's Very Large Telescope (VLT).
