David John Eicher (born August 7, 1961) is an American editor, writer, and popularizer of astronomy and space. He has been editor-in-chief of Astronomy magazine since 2002. He is author, coauthor, or editor of 23 books on science and American history and is known for having founded a magazine on astronomical observing, Deep Sky Monthly, when he was a 15-year-old high school student.
Eicher is also a historian, having researched and written extensively about the American Civil War.
Eicher began his career at AstroMedia Corp., the magazine's publisher, in September 1982 as assistant editor of Astronomy magazine and editor of Deep Sky. In 1985 Kalmbach Publishing Co., the Milwaukee publisher of Model Railroader, Trains, and other titles, bought AstroMedia Corp. Eicher's role in the magazine deepened as he worked on many science stories as well as observing pieces and by decade's end, the company moved to Waukesha, Wisconsin, 16 miles west of Milwaukee, and by that time Eicher was promoted to associate editor. He also published his first books, The Universe from Your Backyard (a compilation of deep-sky observing stories first published in Astronomy), and Deep-Sky Observing with Small Telescopes, an anthology about clusters, nebulae, and galaxies. In 1992 the company decided to cease publishing Deep Sky. Although Eicher has stated that he enjoyed editing this smaller magazine, it became clear that to progress further on Astronomy, he had to give up the smaller journal. At its peak, however, and at the time of its discontinuance, Deep Sky swelled to a circulation of 14,000. Within a span of six weeks in 1996, Eicher was promoted successively to senior editor and then to managing editor. After six years as managing editor, in 2002, Eicher became Astronomy magazine's sixth editor in chief.
Promotion of astronomy
Eicher frequently travels to speak on astronomy or view solar eclipses with tour groups. In 2013 he was invited to speak about great advances in astronomy and on comets at Harvard University, in the Phillips Auditorium of Harvard College Observatory. He was among the 2014 speakers at the Starmus Festival in Tenerife, Canary Islands, and spoke at Harvard again in the spring of 2016, as well as delivering a public talk at Lowell Observatory, Flagstaff, Arizona, in November 2016. In 2017 he spoke at the Science + Mathematics Think-in at WVIZ-PBS ideastream in Cleveland, Ohio. He also spoke at the America's Darkest Sky Star Party at the Dark Sky New Mexico site near Animas, New Mexico in April 2017 and October 2017, and in April 2018 delivered the Benson Memorial Lecture in Physics at Miami University in Oxford, Ohio.
Eicher's service to the astronomy world was recognized in 1990 when the International Astronomical Union named minor planet 3617 Eicher (discovery designation 1984 LJ) in his honor. The asteroid, a main belt object in orbit between Mars and Jupiter, was discovered by astronomer Brian A. Skiff at Lowell Observatory's Anderson Mesa Station in 1984 and the citation was proposed and written by astronomer David H. Levy.
Eicher's books include COMETS! Visitors from Deep Space a book with Brian May of Queen fame, and astronomer Garik Israelian, constituting the conference proceedings, lectures, and information from the first Starmus Festival, a science and music event held in 2011 in the Canary Islands.
Beginning in 2013, he has been a blogger on astronomy and science topics for The Huffington Post. In 2015 he joined the Asteroid Day movement as a 100x signatory and serves on that project’s board as Editor-in-Chief.] 
In 2015 Eicher began producing a video series addressing realities of astronomy and astrophysics. Titled “The Real Reality Show,” it appears on YouTube and on Astronomy.com. An audio interview series, “Superstars of Astronomy,” features hour-long podcast talks with prominent astronomers, planetary scientists, and cosmologists, including Jeff Hester, Garik Israelian, Martin Rees, Seth Shostak, Debra Fischer, Sara Seager, Heidi Hammel, and others.
In 2017, Eicher started an audio podcast series “5 Questions with David Eicher,” which is hosted on the Astronomy Magazine website and features interviews about current scientific research with well-known astronomers, planetary scientists, and cosmologists.
In June 2017, Eicher joined the Advisory Board of Lowell Observatory, in Flagstaff, Arizona. Also in June 2017, Eicher attended and was a principal actor at the fourth Starmus Festival, which took place in Trondheim, Norway. Eicher served as host on the Festival's opening day, delivered two talks about galaxies, served as moderator and host of a panel discussing science education.
Civil War history
Eicher has written eight books on the subject of the American Civil War, including Dixie Betrayed (Little, Brown), The Longest Night (Simon and Schuster), Civil War High Commands (written with his father John; Stanford Univ. Press), and The Civil War in Books (Univ. of Illinois Press).
In 2013 Eicher donated his Civil War library of more than 4,000 volumes, collected since 1982, to the Ulysses S. Grant Presidential Library and Ulysses S. Grant Association at Mississippi State University.
Eicher has been a drummer since grade school days in Ohio and currently plays with his band, the Astro Blues Band, in Wisconsin, which consists mostly of people who work with Eicher on Astronomy Magazine.
- Astronomy Backstage Pass: Northern Arizona (DVD and streaming video product, Kalmbach Publishing Co., 2019)
- Mission Moon 3-D [with Brian May, Foreword by Charlie Duke, and Afterword by Jim Lovell] (London Stereoscopic Company and MIT Press, 2018)
- Astronomy Backstage Pass: Chicago (DVD and streaming video product, Kalmbach Publishing Co., 2018)
- 5 Questions with David Eicher (audio podcast interview series, Kalmbach Publishing Co., 2017–2019)
- Starmus: Discovering the Universe (Executive editor, Canopus Books, 2016)
- The New Cosmos: Answering Astronomy’s Big Questions (Cambridge University Press, 2015)
- Superstars of Astronomy (audio podcast interview series, Kalmbach Publishing Co., 2015–2017)
- The Real Reality Show (video series, Kalmbach Publishing Co., 2015–2019)
- Starmus: 50 Years of Man in Space (executive editor, Canopus Books, 2014)
- COMETS! Visitors from Deep Space (Cambridge University Press, 2013)
- Astronomy Magazine: The Complete Collection (DVD), including The History of Astronomy Magazine (Kalmbach, 2011)
- Lincoln the Liberal Strategist (Or, a Good Man is Hard to Find) (The Lincoln Fellowship of Wisconsin, 2011)
- A New Birth of Freedom: Abraham Lincoln’s Bicentennial, (1809–2009) (Abraham Lincoln Bicentennial Commission, 2009)
- 50 Greatest Mysteries of the Universe (Kalmbach, 2007)
- Dixie Betrayed: How the Confederacy Really Lost the Civil War (Little Brown, 2006)
- Beginner’s Guide to Astronomy (Kalmbach, 2003)
- Gettysburg Battlefield: The Definitive Photographic History (Chronicle Books, 2003)
- The Longest Night: A Military History of the Civil War (Simon and Schuster, 2001)
- Civil War High Commands (coauthor, with John H. Eicher, Stanford University Press, 2001)
- Mystic Chords of Memory: Civil War Battlefields and Historic Sites Recaptured (Louisiana State University Press, 1998)
- Robert E. Lee: A Life Portrait (Taylor, 1997)
- The Civil War in Books: An Analytical Bibliography (University of Illinois Press, 1997)
- Civil War Battlefields: A Touring Guide (Taylor, 1995)
- Beginner’s Guide to Amateur Astronomy (Kalmbach, 1993)
- The New Cosmos: The Astronomy of Our Galaxy and Beyond (editor, Kalmbach, 1992)
- Galaxies and the Universe: An Observing Guide from Deep Sky Magazine (editor and coauthor, Kalmbach, 1992)
- Stars and Galaxies: Astronomy’s Guide to Observing the Cosmos (editor and coauthor, Kalmbach, 1992)
- Beyond the Solar System: 100 Best Deep-Sky Objects for Amateur Astronomers (Kalmbach, 1992)
- Civil War Journeys calendar (Tide-mark, 1990–2000)
- Deep Sky Observing with Small Telescopes (Enslow, 1989)
- The Universe from Your Backyard (Cambridge University Press, 1988)
- May, Hal, ed.: Contemporary Authors, vol. 113, page 141, Gale Research Co., Detroit, Michigan, 1985;
- "Magazine History". Astronomy.com. Retrieved 2017-10-20.
- "Kalmbach Publishing Co. - About Kalmbach". www.kalmbach.com. Retrieved 2017-10-20.
- "Astronomy Magazine History". Astronomy Magazine. Retrieved 7 May 2016.
- "Astronomy Magazine Staff". Astronomy Magazine. Retrieved 7 May 2016.
- ""10 Great Discoveries," David Eicher, Editor-in-Chief, Astronomy magazine". Harvard Smithsonian Center for Astrophysics. September 19, 2013. Retrieved October 19, 2017.
- "Starmus Festival 2014". Starmus Festival. Retrieved 7 May 2016.
- "Science + Mathematics Think-In". ideastream. 2017-03-23. Retrieved 2017-10-19.
- "America's Darkest Sky Star Party a Smashing Success - Astronomy Magazine - Interactive Star Charts, Planets, Meteors, Comets, Telescopes". cs.astronomy.com. Retrieved 2017-10-19.
- "David Eicher to deliver Miami University Benson Memorial Lecture - Astronomy Magazine - Interactive Star Charts, Planets, Meteors, Comets, Telescopes". cs.astronomy.com. Retrieved 2017-10-19.
- "About the Astronomy Foundation". Astronomy Foundation. Retrieved 7 May 2016.
- Chamberlin, Alan. "JPL Small-Body Database Browser". ssd.jpl.nasa.gov. Retrieved 2017-10-19.
- "COMETS!". Cambridge University Press. Retrieved 2016-05-10.
- "The New Cosmos by Cambridge University Press". Cambridge University Press. Retrieved 7 May 2016.
- "David J Eicher on The Huffington Post". The Huffington Post. Retrieved 7 May 2016.
- "Asteroid Day Team". Asteroid Day. Retrieved 7 May 2016.
- "David J Eicher - Official Profile - Asteroid Day". Asteroid Day. Retrieved 2017-10-19.
- "The Real Reality Show". Astronomy Magazine. Retrieved 10 May 2016.
- "Superstars of Astronomy Podcast". Superstars of Astronomy Podcast. Astronomy Magazine. Retrieved 10 May 2016.
- "Five Questions with David J Eicher". Astronomy.com. Retrieved 2017-10-19.
- "David Eicher joins Lowell Observatory Board - Astronomy Magazine - Interactive Star Charts, Planets, Meteors, Comets, Telescopes". cs.astronomy.com. Retrieved 2017-10-19.
- "SPEAKERS". STARMUS. Retrieved 2017-10-19.
- "The Longest Night". books.simonandschuster.com. 2002-09-04. Retrieved 2016-05-10.
- Press, Stanford University. "Civil War High Commands". www.sup.org. Retrieved 2016-05-10.
- Henderson, Meg (Summer 2014). "Eicher Gives Large Book Collection to Grant Library by Meg Henderson" (PDF). Dispatches from Grant: The Newsletter of the Ulysses S. Grant Presidential Library at Mississippi State University. Retrieved October 19, 2017.
- "Astronomy Blues Band". Reverb Nation. Retrieved 2017-10-19.
- "Five Questions with David J Eicher". Astronomy.com. Retrieved 2017-10-19.
- "New cosmos answering astronomys big questions | Amateur and popular astronomy". Cambridge University Press. Retrieved 2017-10-19.
- "Superstars of Astronomy Podcast". Astronomy.com. Retrieved 2017-10-19.
- "The Real Reality Show". Astronomy.com. Retrieved 2017-10-19.
- "COMETS!, Visitors from Deep Space". Cambridge University Press. Retrieved 2017-10-19.
- Eicher, David (2002). The Longest Night: A Military History of the Civil War. Simon & Schuster. ISBN 9780743218467.
- Eicher, David (2002). Civil War High Commands. Stanford, CA: Stanford University Press. ISBN 9780804736411.
- Eicher, David (1998). Mystic Chords of Memory: Civil War Battlefields and Historic Sites Recaptured. Chapel Hill, NC: Louisiana State University Press. ISBN 0807123099.