Alan Hale (astronomer)
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Alan Hale (born 1958) is an American professional
astronomer An astronomer is a scientist in the field of astronomy who focuses on a specific question or field outside the scope of Earth. Astronomers observe astronomical objects, such as stars, planets, natural satellite, moons, comets and galaxy, galax ...
who co-discovered
Comet Hale–Bopp Comet Hale–Bopp (formally designated C/1995 O1) is a long-period comet that was one of the most widely observed of the 20th century and one of the brightest seen for many decades. Alan Hale (astronomer), Alan Hale and Thomas Bopp disc ...
independently of its other co-discoverer,
Thomas Bopp Thomas Joel Bopp (October 15, 1949 – January 5, 2018) was an American amateur astronomer. In 1995, he discovered comet Hale–Bopp; Alan Hale discovered it independently at almost the same time, and it was thus named after both of them. At t ...
, an
amateur astronomer Amateur astronomy is a hobby where participants enjoy observing or imaging celestial objects in the sky using the unaided eye, binoculars, or telescopes. Even though scientific research may not be their primary goal, some amateur astronomers m ...
. Hale specializes in the study of Sun-like stars and the search for extra-solar planetary systems, and has side interests in the fields of
comet A comet is an icy, small Solar System body that warms and begins to release gases when passing close to the Sun, a process called outgassing. This produces an extended, gravitationally unbound atmosphere or Coma (cometary), coma surrounding ...
s and
near-Earth asteroids A near-Earth object (NEO) is any small Solar System body orbiting the Sun whose closest approach to the Sun (perihelion) is less than 1.3 times the Earth–Sun distance (astronomical unit, AU). This definition applies to the object's orbit aro ...
. He has been an active astronomer most of his life and currently serves as the president of the Earthrise Institute, which he founded, and which has as its mission the use of astronomy as a tool for breaking down international and intercultural barriers. The
International Astronomical Union The International Astronomical Union (IAU; , UAI) is an international non-governmental organization (INGO) with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach, education, and developmen ...
(IAU) has named an asteroid in Hale's honor, 4151 Alanhale, in recognition of his numerous comet observations.


Early life and career

Hale was born in 1958 in
Tachikawa file:Autumn colors in Showa memorial park.jpg, 250px, Showa Memorial Park is a Cities of Japan, city located in the western Tokyo, western portion of the Tokyo Metropolis, Japan. , the city had an estimated population of 184,383 in 93,428 househ ...
, Japan, where his father was serving in the
United States Air Force The United States Air Force (USAF) is the Air force, air service branch of the United States Department of Defense. It is one of the six United States Armed Forces and one of the eight uniformed services of the United States. Tracing its ori ...
. Four months later his father was transferred to
Holloman Air Force Base Holloman Air Force Base is a United States Air Force base established in 1942 located six miles (10 km) southwest of the central business district of Alamogordo, which is the county seat of Otero County, New Mexico, United States. The b ...
outside
Alamogordo, New Mexico Alamogordo () is a city in and the county seat of Otero County, New Mexico, United States. A city in the Tularosa Basin of the Chihuahuan Desert, it is bordered on the east by the Sacramento Mountains and to the west by Holloman Air Force ...
. Hale was raised in Alamogordo, where his father retired from the Air Force and worked in civil service. In 2013 Hale said, "I refuse to say that 'I grew up there' because anyone who know me knows that I really haven’t grown up yet." He credits several factors for inspiring his interest in science and
astronomy Astronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos. It uses mathematics, physics, and chemistry in order to explain their origin and their overall evolution. Objects of interest includ ...
in the 1960s: the clear night skies in Alamogordo, library books on astronomy his father gave him in the first grade, the
US space program The space policy of the United States includes the making of space policy through the legislative process and the implementation of that policy in the U.S. civilian and military space programs through regulatory agencies. The early history of U.S ...
, and the original ''
Star Trek ''Star Trek'' is an American science fiction media franchise created by Gene Roddenberry, which began with the Star Trek: The Original Series, series of the same name and became a worldwide Popular culture, pop-culture Cultural influence of ...
'' TV series. Hale also said that as a child he was interested in other sciences as well, and he "went through a dinosaur phase when I was in 2nd grade. I knew them all. Drove my parent nuts." Hale graduated from Alamogordo High School in 1976, and then served in the
United States Navy The United States Navy (USN) is the naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 millio ...
from 1976 to 1983. He graduated from the
U.S. Naval Academy The United States Naval Academy (USNA, Navy, or Annapolis) is a federal service academy in Annapolis, Maryland. It was established on 10 October 1845 during the tenure of George Bancroft as Secretary of the Navy. The Naval Academy is the sec ...
in 1980 with a
bachelor's degree A bachelor's degree (from Medieval Latin ''baccalaureus'') or baccalaureate (from Modern Latin ''baccalaureatus'') is an undergraduate degree awarded by colleges and universities upon completion of a course of study lasting three to six years ...
in
physics Physics is the scientific study of matter, its Elementary particle, fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge whi ...
. Following his Navy service he worked at the
Jet Propulsion Laboratory The Jet Propulsion Laboratory (JPL) is a Federally funded research and development centers, federally funded research and development center (FFRDC) in La Cañada Flintridge, California, Crescenta Valley, United States. Founded in 1936 by Cali ...
(JPL) until 1986 as an engineering contractor for Allied Bendix Aerospace working on the
Deep Space Network The NASA Deep Space Network (DSN) is a worldwide Telecommunications network, network of spacecraft communication ground segment facilities, located in the United States (California), Spain (Madrid), and Australia (Canberra), that supports NASA' ...
project, as well as on several
spacecraft A spacecraft is a vehicle that is designed spaceflight, to fly and operate in outer space. Spacecraft are used for a variety of purposes, including Telecommunications, communications, Earth observation satellite, Earth observation, Weather s ...
projects. During the 1986
Voyager 2 ''Voyager 2'' is a space probe launched by NASA on August 20, 1977, as a part of the Voyager program. It was launched on a trajectory towards the gas giants (Jupiter and Saturn) and enabled further encounters with the ice giants (Uranus and ...
fly-by of
Uranus Uranus is the seventh planet from the Sun. It is a gaseous cyan-coloured ice giant. Most of the planet is made of water, ammonia, and methane in a Supercritical fluid, supercritical phase of matter, which astronomy calls "ice" or Volatile ( ...
, he worked with the Radio Science Experiment, using the spacecraft
carrier signal In telecommunications, a carrier wave, carrier signal, or just carrier, is a periodic waveform (usually sinusoidal) that conveys information through a process called ''modulation''. One or more of the wave's properties, such as amplitude or frequ ...
to deduce information about Uranus' atmosphere and rings. After leaving the JPL, Hale enrolled in the astronomy department of
New Mexico State University New Mexico State University (NMSU or NM State) is a public, land-grant, research university in Las Cruces, New Mexico, United States. Founded in 1888, it is the state's oldest public institution of higher education, and was the original land-g ...
, Las Cruces, where he earned a Master's Degree and a PhD in 1989 and 1992 respectively, both in astronomy. His
doctoral A doctorate (from Latin ''doctor'', meaning "teacher") or doctoral degree is a postgraduate academic degree awarded by universities and some other educational institutions, derived from the ancient formalism '' licentia docendi'' ("licence to teach ...
dissertation was published in the January 1994 issue of ''
The Astronomical Journal ''The Astronomical Journal'' (often abbreviated ''AJ'' in scientific papers and references) is a peer-reviewed monthly scientific journal owned by the American Astronomical Society (AAS) and currently published by IOP Publishing. It is one of the p ...
''. After completing his studies at the New Mexico State University, Hale worked at the
New Mexico Museum of Space History The New Mexico Museum of Space History is a museum and planetarium complex in Alamogordo, New Mexico, United States, dedicated to artifacts and displays related to space flight and the Space Age. It includes the International Space Hall of Fame. ...
in Alamogordo as its staff astronomer and outreach education coordinator.


Earthrise Institute

In 1993 Hale founded the Southwest Institute for Space Research (SWISR), which later became the Earthrise Institute, where Hale serves as president. Hale said "there is an entire generation that has come of age having never really seen the dark sky", so part of what he wanted to accomplish with Earthrise was "to create an environment where students could spend some nights out under a dark sky and see what it really looks like." In 1999 Hale assembled a group of American scientists, students and educators to go on a 2 week+ trip to
Iran Iran, officially the Islamic Republic of Iran (IRI) and also known as Persia, is a country in West Asia. It borders Iraq to the west, Turkey, Azerbaijan, and Armenia to the northwest, the Caspian Sea to the north, Turkmenistan to the nort ...
(coinciding with a
solar eclipse A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby obscuring the view of the Sun from a small part of Earth, totally or partially. Such an alignment occurs approximately every six months, during the eclipse season i ...
) where they gave talks throughout the country. Hale feels that "Science is a... universal language" and "it would be a great idea if we could use science as a tool to bring people together... to break down barriers between nations and between cultures." Hale uses the expression 'Science Diplomacy' in this context, which he says it's possible he coined. "The sky looks the same from Iran as it does from here in the US. It’s the same sky we study... Science does not know political boundaries." This sentiment is reflected in the mission of his Earthrise Institute, which is "to use astronomy, space, and other related endeavors as a tool for breaking down international and intercultural barriers and for bringing humanity together." Earthrise's inaugural educational project was announced in a press release on March 1, 2007: Hale remains active with the Earthrise Institute performing science outreach. For example, his "In Our Skies" column appears in the ''
Alamogordo Daily News ''Alamogordo Daily News'', founded in 1898, is a daily newspaper published in Alamogordo, New Mexico, United States. It carries local news as well as syndicated content from Associated Press and others. History ''Alamogordo Daily News'' clai ...
'', in which he discusses current astronomical issues. In 2019, Hale announced he was authoring a weekly educational series about the "small bodies" of the Solar System. The series, titled Ice and Stone 2020, features three presentations about comets and asteroids – This Week in History, Comet of the week, and a Special Topic – being released each week throughout 2020. Ice and Stone 2020 is available for free online at the websites of both the Earthrise Institute and RocketSTEM.


Discovery of Comet Hale–Bopp

Hale first spotted the comet that would come to bear his name from his home in Cloudcroft, New Mexico, where the night sky is exceptionally dark. Since 1970 Hale had observed over 200 known comets, and on the night of July 22–23, 1995, after finishing his observations of periodic Comet Clark, and while waiting for periodic
Comet d'Arrest 6P/d'Arrest (also known as d'Arrest's Comet or Comet d'Arrest) is a periodic Jupiter-family comet in the Solar System, orbiting between Mars and Jupiter. It passed from the Earth on August 12, 1976. The most recent perihelion passage took plac ...
to become visible above the horizon, he "decided to pass the time by observing some deep-sky objects in
Sagittarius Sagittarius ( ) may refer to: *Sagittarius (constellation) *Sagittarius (astrology), a sign of the Zodiac * Sagittarius of Gap, a 6th century bishop *Sagittarius A*, the supermassive black hole at the center of the Milky Way galaxy Ships *'' S ...
", and pointed his Meade DS-16 telescope towards
globular cluster A globular cluster is a spheroidal conglomeration of stars that is bound together by gravity, with a higher concentration of stars towards its center. It can contain anywhere from tens of thousands to many millions of member stars, all orbiting ...
M70. He said that he "immediately noticed a fuzzy object in the field" which had not been present when he had observed that region of the sky two weeks earlier. After consulting his astronomical sources, and determining that the comet was likely unknown, Hale says: Unknown to Hale, that night
Thomas Bopp Thomas Joel Bopp (October 15, 1949 – January 5, 2018) was an American amateur astronomer. In 1995, he discovered comet Hale–Bopp; Alan Hale discovered it independently at almost the same time, and it was thus named after both of them. At t ...
was observing the same region of the sky with friends near
Stanfield, Arizona Stanfield () is a census-designated place (CDP) in Pinal County, Arizona, United States. The population was 651 at the 2000 census. Shamrock Farms operates a farm in Stanfield. Geography Stanfield is located at (32.881612, -111.963473). Acc ...
. At around 11:00 pm, Bopp was observing M70 through his telescope and "noticed a fainter, fuzzy object coming into the field". Bopp and his friends determined that it was a comet, and after Bopp returned home he informed Central Bureau of his discovery. On July 23, the
IAU The International Astronomical Union (IAU; , UAI) is an international non-governmental organization (INGO) with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach, education, and developmen ...
issued Circular 6187 to announce the joint discovery of the new comet. Per Hale, calculations indicate that Hale–Bopp likely last appeared on the order of 4000 years ago, but any record of this previous encounter had not yet been positively identified from ancient records. It has also been determined that Hale–Bopp will not return to the
inner Solar System The Solar SystemCapitalization of the name varies. The International Astronomical Union, the authoritative body regarding astronomical nomenclature, specifies capitalizing the names of all individual astronomical objects but uses mixed "Sol ...
until approximately 4385.
Comet Hale–Bopp Comet Hale–Bopp (formally designated C/1995 O1) is a long-period comet that was one of the most widely observed of the 20th century and one of the brightest seen for many decades. Alan Hale (astronomer), Alan Hale and Thomas Bopp disc ...
, originally labeled C/1995 O1, and sometimes called "the Great Comet of 1997", became one of the most-viewed comets in human history, and the brightest comet seen since
Comet West Comet West, formally designated as C/1975 V1, 1976 VI, and 1975n, was a comet described as one of the brightest objects to pass through the inner Solar System in 1976. It is often described as a "great comet." History It was discovered pho ...
in 1976, appearing "1000 times brighter than
Comet Halley Halley's Comet is the only known short-period comet that is consistently visible to the naked eye from Earth, appearing every 72–80 years, though with the majority of recorded apparitions (25 of 30) occurring after 75–77 years. It last ...
did at the same distance." When the comet was at the peak of its brightness, Hale says he was giving talks about the comet in big cities with light-polluted night skies, so he did not get a chance "to see it all that much when it was really bright." Regarding the
press conference A press conference, also called news conference or press briefing, is a media event in which notable individuals or organizations invite journalism, journalists to hear them speak and ask questions. Press conferences are often held by politicia ...
of the comet’s discovery, Hale praised the reporting done by “the very first reporter that broke the story of the comet’s discovery,” the ''
Albuquerque Journal The ''Albuquerque Journal'' is the largest newspaper in the U.S. state of New Mexico. History The ''Golden Gate'' newspaper was founded in June 1880. In the fall of 1880, the owner of the ''Golden Gate'' died and Journal Publishing Company was ...
'' science reporter John Fleck: As an example of the media getting it wrong, Hale told this story:


Heaven's Gate reaction

Historically linked to the discovery and first recorded appearance of Hale–Bopp is Heaven's Gate, a
religious cult Cults are social groups which have unusual, and often extreme, religious, spiritual, or philosophical beliefs and rituals. Extreme devotion to a particular person, object, or goal is another characteristic often ascribed to cults. The term ha ...
in
San Diego San Diego ( , ) is a city on the Pacific coast of Southern California, adjacent to the Mexico–United States border. With a population of over 1.4 million, it is the List of United States cities by population, eighth-most populous city in t ...
led by
Marshall Applewhite Marshall Herff Applewhite Jr. (May 17, 1931 – March 26, 1997), also known as Do, among other names, was an American religious leader who founded and led the Heaven's Gate new religious movement (often described as a cult), and o ...
who preached that an alien spacecraft was following Comet Hale–Bopp. The cult members believed that transporting their
souls The soul is the purported immaterial aspect or essence of a living being. It is typically believed to be immortal and to exist apart from the material world. The three main theories that describe the relationship between the soul and the bod ...
to the spacecraft and evacuating the Earth – which was soon to be "recycled" – would permit them to achieve salvation. Applewhite and 38 followers poisoned themselves over three days in March 1997 in the belief this would allow them to pass through "Heaven's Gate" and achieve "the Evolutionary Level Above Human." The rationale for taking their lives was (and is, as of this writing) clearly detailed on the group's website which is maintained by surviving cult members. When news broke of the Heaven's Gate mass suicides and their relation to Comet Hale–Bopp, Hale's phone "never stopped ringing the entire day." Hale did not respond until the next day, when he spoke at a press conference on the subject, only after he had researched details of the incident. At the 20th annual convention of the
Freedom From Religion Foundation The Freedom From Religion Foundation (FFRF) is an American nonprofit organization that advocates for atheism, atheists, agnosticism, agnostics, and nontheism, nontheists. Formed in 1976, FFRF promotes the separation of church and state, and ch ...
(FFRF) in
Tampa, Florida Tampa ( ) is a city on the Gulf Coast of the United States, Gulf Coast of the U.S. state of Florida. Tampa's borders include the north shore of Tampa Bay and the east shore of Old Tampa Bay. Tampa is the largest city in the Tampa Bay area and t ...
, in 1997 Hale was a featured speaker and discussed the suicides, calling their death pact and other religion-fostered violence "another victory for ignorance and superstition." Speaking at the Second World Skeptics Congress in
Heidelberg Heidelberg (; ; ) is the List of cities in Baden-Württemberg by population, fifth-largest city in the States of Germany, German state of Baden-Württemberg, and with a population of about 163,000, of which roughly a quarter consists of studen ...
, Germany, on July 24, 1998: Hale said that, well before Heaven's Gate, he had told a colleague:


Media appearances

Following his discovery of Comet Hale–Bopp, Hale was in demand to speak about the comet bearing his name, and this gave him a platform to discuss Hale-Bopp as well as general astronomy and science. Hale was a guest speaker at the February 16, 1996, meeting of
New Mexicans for Science and Reason New Mexicans for Science and Reason (also known by the abbreviation NMSR) is a science advocacy organization based in Albuquerque, New Mexico. Founded by ''Skeptical Inquirer'' editor Kendrick Frazier on May 16, 1990. As of 1998 the President is ...
(NMSR) which according to member and '' Science Watch'' host Dave Thomas "was one of our most memorable and well-attended ever." Hale spoke on "Comet Hale–Bopp: Potentials and Opportunities" and cautioned against complacency about asteroid and comet impacts on the Earth, saying that: On February 26, 1997, Hale was the guest speaker for two public lectures sponsored by the Center for Particle Astrophysics at
UC Berkeley The University of California, Berkeley (UC Berkeley, Berkeley, Cal, or California), is a public land-grant research university in Berkeley, California, United States. Founded in 1868 and named after the Anglo-Irish philosopher George Berkele ...
. Hale has been a periodic guest on ''
The Space Show ''The Space Show'' is an Internet radio talk show about the development of outer space commerce and space tourism, and the issues impacting their development. It is also available archived online as a podcast. It airs 2 to 4 times per week, is ...
'', an Internet radio talk show centering on space commerce and exploration, which is also available as a
podcast A podcast is a Radio program, program made available in digital format for download over the Internet. Typically, a podcast is an Episode, episodic series of digital audio Computer file, files that users can download to a personal device or str ...
. On the March 19, 2002, broadcast, Hale spoke of the importance of the search for
Near-Earth Asteroids A near-Earth object (NEO) is any small Solar System body orbiting the Sun whose closest approach to the Sun (perihelion) is less than 1.3 times the Earth–Sun distance (astronomical unit, AU). This definition applies to the object's orbit aro ...
(NEAs) and their danger to civilization: From 2004 to 2006 Hale was host of a weekly radio program, ''The Other Side of the Sky'' (the precursor to ''Earthrise Radio''). On March 11, 2006, Hale was interviewed on the NMSR's '' Science Watch'' radio show in an episode called "An Hour-long visit with Dr. Alan Hale, co-discoverer of the Hale–Bopp Comet!"


Scientific skepticism advocacy

As a
scientific skeptic Science is a systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the universe. Modern science is typically divided into twoor threemajor branches: the natural sciences, which stu ...
, Hale is a periodic contributor to ''
Skeptical Inquirer ''Skeptical Inquirer'' (S.I.) is a bimonthly American general-audience magazine published by the Committee for Skeptical Inquiry (CSI) with the subtitle "The Magazine for Science and Reason". The magazine initially focused on investigating clai ...
'' magazine. One such article, titled "An Astronomer’s Personal Statement on UFOs", appeared in the March/April 1997 edition. In the article Hale stated: After an analysis of the claims of extraterrestrial visitation with regards to these three principles, Hale concluded:


Atheist activism

Hale is an
atheist Atheism, in the broadest sense, is an absence of belief in the existence of deities. Less broadly, atheism is a rejection of the belief that any deities exist. In an even narrower sense, atheism is specifically the position that there no ...
and member of the honorary board of the online group
Internet Infidels Internet Infidels, Inc. is an American nonprofit educational organization founded in 1995 by Jeffery Jay Lowder and Brett Lemoine. Its mission is to use the Internet to promote a view that supernatural forces or entities do not exist (metaphysical ...
which has the mission of using the Internet to promote a view that
supernatural Supernatural phenomena or entities are those beyond the Scientific law, laws of nature. The term is derived from Medieval Latin , from Latin 'above, beyond, outside of' + 'nature'. Although the corollary term "nature" has had multiple meanin ...
forces or entities do not exist. Hale has made his position on religion clear:


Awards and honors

In 1980 Alan Hale was awarded the
Navy League of the United States The Navy League of the United States, commonly referred to as the Navy League, is a national association with nearly 50,000 members who advocate for a strong, credible United States Navy, United States Marine Corps, United States Coast Guard and ...
prize in
Applied Physics Applied physics is the application of physics to solve scientific or engineering problems. It is usually considered a bridge or a connection between physics and engineering. "Applied" is distinguished from "pure" by a subtle combination of fac ...
. In 1991, years prior to his discovery of Hale–Bopp, the IAU named an asteroid, 4151 Alanhale, in Hale's honor in recognition of his numerous comet observations, stating that:


Select bibliography


Books

*''Everybody's Comet: A Layman's Guide to Hale–Bopp'' *''Great Balls of Ice: A Century of Comets'' *''the comet man (a memoir)'' e-book


Scientific journals

*''
The Astronomical Journal ''The Astronomical Journal'' (often abbreviated ''AJ'' in scientific papers and references) is a peer-reviewed monthly scientific journal owned by the American Astronomical Society (AAS) and currently published by IOP Publishing. It is one of the p ...
'': Dissertation published in January 1994 *''The International Comet Quarterly'':


Popular publications

From August 2002 to January 2003, Hale wrote a weekly newspaper column for the
Space Frontier Foundation The Space Frontier Foundation is an American space advocacy nonprofit corporation organized to promote the interests of increased involvement of the private sector, in collaboration with government, in the exploration and development of space. ...
entitled "In Our Skies," which has been archived online. He also wrote a monthly column entitled "Hale to the Stars." Hale currently contributes to the ''
Alamogordo Daily News ''Alamogordo Daily News'', founded in 1898, is a daily newspaper published in Alamogordo, New Mexico, United States. It carries local news as well as syndicated content from Associated Press and others. History ''Alamogordo Daily News'' clai ...
'' with his "In Our Skies" column, covering a variety of astronomical and spaceflight topics. Other publications Hale has contributed to include ''
Astronomy Astronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos. It uses mathematics, physics, and chemistry in order to explain their origin and their overall evolution. Objects of interest includ ...
'', ''
Skeptical Inquirer ''Skeptical Inquirer'' (S.I.) is a bimonthly American general-audience magazine published by the Committee for Skeptical Inquiry (CSI) with the subtitle "The Magazine for Science and Reason". The magazine initially focused on investigating clai ...
'', ''
Free Inquiry ''Free Inquiry'' is a bimonthly journal of secular humanist opinion and commentary published by the Council for Secular Humanism, a program of the Center for Inquiry. Philosopher Paul Kurtz was the editor-in-chief from its inception in 1980 un ...
'' and the ''
McGraw-Hill Encyclopedia of Science & Technology The ''McGraw-Hill Encyclopedia of Science & Technology'' is an English-language multivolume encyclopedia, specifically focused on scientific and technical subjects, and published by McGraw-Hill Education. The most recent edition in print is the el ...
''.


Professional societies

*
American Astronomical Society The American Astronomical Society (AAS, sometimes spoken as "double-A-S") is an American society of professional astronomers and other interested individuals, headquartered in Washington, DC. The primary objective of the AAS is to promote the adv ...
*
Sigma Pi Sigma Sigma Pi Sigma () is an American honor society for physics and astronomy. It was founded at Davidson College in Davidson, North Carolina on December 11, 1921. It is the oldest and only American honor society for physics and astronomy. It is an or ...


References


External links


Comet Hale–Bopp Home Page at JPL



Alan Hale's Earthrise Institute
{{DEFAULTSORT:Hale, Alan Date of birth missing (living people) 1958 births Living people Scientists from New Mexico People from Otero County, New Mexico New Mexico State University alumni United States Naval Academy alumni People from Alamogordo, New Mexico People from Tachikawa Critics of creationism Critics of religions Space advocates 20th-century atheists 21st-century atheists Bendix Corporation people Discoverers of comets American atheism activists American astronomers American skeptics