1920: Scale of the Universe Debate History & brief summaries: About the 1920 Greate Debate | Wikipedia | This Month in Astronomical History | Astronomy’s Great RemembranceVirginia Trimble: History of the Scale of the Universe DebateDeborah Shapley (Granddaughter): Harlow Shapley: Discovering Our Place in the Galaxy | harlowshapley. comSarah & Robert Curtis (Great-great Granddaughter & Great-Grandson): The Family Legacy of Heber Doust Curtis2020: Life in the Universe Debate Jill Tarter (SETI Institute): Overview: Here and Now: A Century LaterGlossary: Frequently used termsIntroduction: The Life in the Universe Debate in 2020Debate Question: How will humanity first discover extraterrestrial life?
Jessie Christiansen (Scientist: NASA Exoplanet Inst. )Charles Cockell (Prof.
of Astrobiology: U. Edinburgh)Guy Consolmagno (Director: Vatican Observatory)Richard Tresch Fienberg (AAS, Sky & Telescope)Timothy Ferris (Author, Producer: PBS: Life Beyond Earth)Robert Gendler (Author: A Year in the Life of the Universe)James Green (Chief Scientist: NASA) David Grinspoon (Senior Scientist: Planetary Science Institute)Paul Hertz (Director of Astrophysics: NASA)Sabine Hossenfelder (Frankfurt IAS, Backreaction Blog)Stephen Maran (AAS Press Officer: 1984-2009)John Mather (NASA, Nobel Prize in Physics 2006)Robert Nemiroff (Prof: Michigan Tech; PI: APOD)Martin Rees (Cambridge U.
, Astronomer Royal UK) Caleb Scharf (Columbia U. , Director of Astrobiology)Sara Seager (Prof.
of Planetary Science, MIT)Seth Shostak (Senior Astronomer: SETI Institute)Ethan Siegel (Starts with a Bang Blog)David Spergel (Princeton U. , Flatiron Ins.
)Jill Tarter (SETI Institute)Peter Ward (Professor: U. Washington)About | Glossary | Participate | Movies | Students | Discuss |
