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. , southeast of Rome, Italy, 2007. From 2011 through 2017, Eicher was president of the Astronomy Foundation. the first ever
trade association for the
telescope industry. . At this time the asteroid shone at magnitude 16.7 and was just south of the Virgo Cluster of galaxies.|thumb|Asteroid 3617 Eicher (tick marks) imaged by Canadian astrophotographer Jack Newton on July 5, 2005, using a robotic telescope placed in Portal, Arizona. At this time the asteroid shone at magnitude 16.7 and was just south of the Virgo Cluster of galaxies. 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 May 2015, he was named to the Board of Directors of the
Starmus Festival. 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==