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Bryce Ellicott
JA Grier (born 1968) is an American planetary scientist who works as a senior scientist and senior education and communication specialist at the Planetary Science Institute. Grier's research has focused on the weathering of planets, moons, and asteroids, the age of impact ejecta on the lunar soil, the chemical composition of meteorites, and the existence of water on Mars. They are also active in science education. Education and career Grier completed a PhD in 1999 from the University of Arizona with a dissertation ''Determining the ages of impact events: Multidisciplinary studies using remote sensing and sample analysis techniques'' supervised by Alfred McEwen. They started working for the Planetary Science Institute in 1999. Publications Grier is a coauthor of books including: *''Guide to the Universe: Inner Planets'' (with Andrew S. Rivkin, Greenwood Publishing, 2010) *''Airless Bodies of the Inner Solar System: Understanding the Process Affecting Rocky, Airless Surfaces' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planetary Science
Planetary science (or more rarely, planetology) is the scientific study of planets (including Earth), celestial bodies (such as moons, asteroids, comets) and planetary systems (in particular those of the Solar System) and the processes of their formation. It studies objects ranging in size from micrometeoroids to gas giants, aiming to determine their composition, dynamics, formation, interrelations and history. It is a strongly interdisciplinary field, which originally grew from astronomy and Earth science, and now incorporates many disciplines, including planetary geology, cosmochemistry, atmospheric science, physics, oceanography, hydrology, theoretical planetary science, glaciology, and exoplanetology. Allied disciplines include space physics, when concerned with the effects of the Sun on the bodies of the Solar System, and astrobiology. There are interrelated observational and theoretical branches of planetary science. Observational research can involve combinations of spac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
7807 Grier
78 may refer to: * 78 (number) * one of the years 78 BC, AD 78, 1978, 2078 In contemporary history, the third millennium of the anno Domini or Common Era in the Gregorian calendar is the current millennium spanning the years 2001 to 3000 ( 21st to 30th centuries). Ongoing futures studies seek to understand what is l ... * 78 RPM phonograph (gramophone) record * The 78, a proposed urban development in Chicago, Illinois, US See also * * List of highways numbered 78 {{Numberdis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Arizona Alumni
A university () is an institution of higher (or tertiary) education and research which awards academic degrees in several academic disciplines. Universities typically offer both undergraduate and postgraduate programs. In the United States, the designation is reserved for colleges that have a graduate school. The word ''university'' is derived from the Latin ''universitas magistrorum et scholarium'', which roughly means "community of teachers and scholars". The first universities were created in Europe by Catholic Church monks. The University of Bologna (''Università di Bologna''), founded in 1088, is the first university in the sense of: *Being a high degree-awarding institute. *Having independence from the ecclesiastic schools, although conducted by both clergy and non-clergy. *Using the word ''universitas'' (which was coined at its foundation). *Issuing secular and non-secular degrees: grammar, rhetoric, logic, theology, canon law, notarial law.Hunt Janin: "The university i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Non-binary Scientists
Non-binary and genderqueer are umbrella terms for gender identities that are not solely male or femaleidentities that are outside the gender binary. Non-binary identities fall under the transgender umbrella, since non-binary people typically identify with a gender that is different from their assigned sex, though some non-binary people do not consider themselves transgender. Non-binary people may identify as an intermediate or separate third gender, identify with more than one gender, no gender (agender), or have a fluctuating gender identity (genderfluid). Gender identity is separate from sexual or romantic orientation: non-binary people have various sexual orientations. Being non-binary is also not the same as being intersex; most intersex people identify as either male or female. Non-binary people as a group vary in their gender expressions, and some may reject gender identity altogether. Some non-binary people are medically treated for gender dysphoria with surg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Planetary Scientists
American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, people who self-identify their ancestry as "American" ** American English, the set of varieties of the English language native to the United States ** Native Americans in the United States, indigenous peoples of the United States * American, something of, from, or related to the Americas, also known as "America" ** Indigenous peoples of the Americas * American (word), for analysis and history of the meanings in various contexts Organizations * American Airlines, U.S.-based airline headquartered in Fort Worth, Texas * American Athletic Conference, an American college athletic conference * American Recordings (record label), a record label previously known as Def American * American University, in Washington, D.C. Sports teams Soccer * Ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LGBT Astronomers
' is an initialism that stands for lesbian, gay, bisexual, and transgender. In use since the 1990s, the initialism, as well as some of its common variants, functions as an umbrella term for sexuality and gender identity. The LGBT term is an adaptation of the initialism ', which began to replace the term ''gay'' (or ''gay and lesbian'') in reference to the broader LGBT community beginning in the mid-to-late 1980s. When not inclusive of transgender people, the shorter term LGB is still used instead of LGBT. It may refer to anyone who is non-heterosexual or non- cisgender, instead of exclusively to people who are lesbian, gay, bisexual, or transgender. To recognize this inclusion, a popular variant, ', adds the letter ''Q'' for those who identify as queer or are questioning their sexual or gender identity. The initialisms ''LGBT'' or ''GLBT'' are not agreed to by everyone that they are supposed to include. History of the term The first widely used term, ''homosexual'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
21st-century American Astronomers
The 1st century was the century spanning AD 1 ( I) through AD 100 ( C) according to the Julian calendar. It is often written as the or to distinguish it from the 1st century BC (or BCE) which preceded it. The 1st century is considered part of the Classical era, epoch, or historical period. The 1st century also saw the appearance of Christianity. During this period, Europe, North Africa and the Near East fell under increasing domination by the Roman Empire, which continued expanding, most notably conquering Britain under the emperor Claudius (AD 43). The reforms introduced by Augustus during his long reign stabilized the empire after the turmoil of the previous century's civil wars. Later in the century the Julio-Claudian dynasty, which had been founded by Augustus, came to an end with the suicide of Nero in AD 68. There followed the famous Year of Four Emperors, a brief period of civil war and instability, which was finally brought to an end by Vespasian, ninth Roman emperor, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Living People
Related categories * :Year of birth missing (living people) / :Year of birth unknown * :Date of birth missing (living people) / :Date of birth unknown * :Place of birth missing (living people) / :Place of birth unknown * :Year of death missing / :Year of death unknown * :Date of death missing / :Date of death unknown * :Place of death missing / :Place of death unknown * :Missing middle or first names See also * :Dead people * :Template:L, which generates this category or death years, and birth year and sort keys. : {{DEFAULTSORT:Living people 21st-century people People by status ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1968 Births
The year was highlighted by protests and other unrests that occurred worldwide. Events January–February * January 5 – " Prague Spring": Alexander Dubček is chosen as leader of the Communist Party of Czechoslovakia. * January 10 – John Gorton is sworn in as 19th Prime Minister of Australia, taking over from John McEwen after being elected leader of the Liberal Party the previous day, following the disappearance of Harold Holt. Gorton becomes the only Senator to become Prime Minister, though he immediately transfers to the House of Representatives through the 1968 Higgins by-election in Holt's vacant seat. * January 15 – The 1968 Belice earthquake in Sicily kills 380 and injures around 1,000. * January 21 ** Vietnam War: Battle of Khe Sanh – One of the most publicized and controversial battles of the war begins, ending on April 8. ** 1968 Thule Air Base B-52 crash: A U.S. B-52 Stratofortress crashes in Greenland, discharging 4 nuclear bombs. * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 advancement of astronomy and closely related branches of science, while the secondary purpose includes enhancing astronomy education and providing a political voice for its members through lobbying and grassroots activities. Its current mission is to enhance and share humanity's scientific understanding of the universe as a diverse and inclusive astronomical community. History The society was founded in 1899 through the efforts of George Ellery Hale. The constitution of the group was written by Hale, George Comstock, Edward Morley, Simon Newcomb and Edward Charles Pickering. These men, plus four others, were the first Executive Council of the society; Newcomb was the first president. The initial membership was 114. The AAS name of the so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planetary Science Institute
The Planetary Science Institute (PSI) is a 501(c)(3) non-profit research institute based in Tucson, Arizona, focusing on planetary science. , its director is Dr. Mark V. Sykes. PSI, along with Space Science Institute (SSI) Southwest Research Institute (SwRI), and Eureka Scientific, were listed as 501(c)(3) organizations in the US in a special report by Nature in 2007, which facilitate federal grant applications of non-tenure-track astronomers. Description Founded in 1972 by William Kenneth Hartmann, PSI is involved in many NASA missions, the study of Mars, asteroids, comets, interplanetary dust, the formation of the Solar System, extrasolar planets, the origin of life, and other scientific topics. It actively participated in the ''Dawn'' mission, which explored Vesta between 2011 and 2012, and Ceres between 2015 and 2018. It managed the GRaND a Gamma Ray and Neutron Detector spectrometer, which mapped the surfaces of the two minor planets to determine how they were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfred McEwen
Alfred McEwen is a professor of planetary geology at the University of Arizona. McEwen is a member of the Lunar and Planetary Laboratory where he directs the director of the Planetary Image Research Laboratory. He is a member of the imaging science team on the Cassini–Huygens mission to Saturn, co-investigator on the Lunar Reconnaissance Orbit Camera team, and principal investigator of the High Resolution Imaging Science Experiment (HiRISE) aboard the Mars Reconnaissance Orbiter. He earned a Ph.D. in Planetary Geology in 1988 from Arizona State University. McEwen participated in the Mars Odyssey, Mars Global Surveyor, and Galileo science teams. In 2015, McEwen received the Whipple Award for his work on HiRISE High Resolution Imaging Science Experiment is a camera on board the ''Mars Reconnaissance Orbiter'' which has been orbiting and studying Mars since 2006. The 65 kg (143 lb), US$40 million instrument was built under the direction o .... In 2019, he rec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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