The Halley Lectures are a series of annual public lectures hosted by the University of Oxford, in memory of the astronomer Edmond Halley. Currently, some podcasts of the lectures can be found through the Oxford Physics Public Lectures [1] These lectures aim to promote public understanding and engagement with science, mathematics, and related fields, and to inspire new generations of researchers and students to pursue careers in these areas. They are often delivered May or June each year at the Sir Martin Wood Lecture Theatre of the Clarendon Laboratory
The tradition of the Halley Lecture in the University of Oxford was founded by Henry Wilde for the 1910 return of Halley's comet. By Wilde's direction, it is to be given annually on a subject related to astronomy or terrestrial magnetism. With time,University expanded their scope to interpret astronomy including astrophysics, and terrestrial magnetism to include "and terrestrial magnetism to include "the physics of the external and internal parts of the terrestrial globe" geophysics. The first Halley lecture Celestial ejectamenta. was delivered by Henry Wilde himself on Tuesday, 10 May 1910.
The purpose of the Halley Lectures is to bring leading experts in various fields to the University of Oxford, where they can share their knowledge and insights with the public. The lectures aim to promote public understanding and engagement with science and mathematics, and to inspire new generations of researchers and students to pursue careers in these areas.
The Halley Lectures are open to the public and are typically well-attended by people of all ages and backgrounds. Each lecture lasts approximately one hour, and is followed by a Q&A session where the audience can ask questions and engage with the speaker.
The topics covered in the Halley Lectures are diverse and reflect the wide range of disciplines within science and mathematics that illuminate astronomy, astrophysics, cosmology, cosmogenesis, exobiology, and earth science. Selection of lecturers is made based on timeliness of the topic, their expertise and contributions to their respective fields.
Date | Lecturer | Title |
---|---|---|
27 October 2022 | Amina Helmi | Dynamics and History of the Milky Way [2] |
8 May 2019 | Marc Kamionkowski | Is Dark Matter Made of Black Holes [3] |
22 May 2018 | Adam Showman [4] [5] | Weather on Remote Worlds [6] |
7 June 2017 | Rainer Weiss | Observation of the mergers of binary black holes: The opening of gravitational wave astronomy [7] |
8 June 2016 | Scott Tremaine | The origin and structure of the solar system comet cloud [8] |
19 June 2015 | Peter J. Webster | Understanding the Monsoon [9] |
13 June 2014 | Eliot Quataert | From Smooth to Lumpy -- the Physics of Galaxy Formation [3] |
29 May 2013 | Ewine van Dishoeck | Building stars, planets and the ingredients for life between the stars [10] |
14 June 2012 | Susan Solomon | The World's Chemistry in Our Hands: Global Environmental Challenges Past and Future [11] [12] |
11 March 2011 | Michel Mayor | Other Worlds in the Universe? The Quest for Earth Twins |
25 May 2010 | Brian Schmidt | The Accelerating the Universe |
24 April 2008 | George Smoot | The History and Fate of the Universe |
23 May 2007 | Ron Ekers | Paths to Discovery in Radioastronomy -Prediction and Serendipity |
21 May 1985 | Malcolm Longair | Universe - present, past and future [13] |
23 May 1972 | Subrahmanyan Chandrasekhar | The increasing role of general relativity in astronomy [14] |
4 June 1976 | Charles H Townes | Interstellar molecules [15] |
16 May 1962 | Hermann Bondi | Physics and Cosmology [16] |
6 May 1955 | Martin Ryle | Radio stars and their cosmological significance [17] |
1 May 1951 | Jan Oort | Origin and development of comets [18] |
16 May 1950 | Edward Bullard | The origin of the Earth's magnetic field [19] |
12 May 1948 | Fritz Zwicky | Morphological Astronomy [20] [21] |
3 June 1941 | William Marshall Smart | Sea and Air Navigation [22] |
16 May 1940 | Fritz Paneth | The origin of meteorites [23] |
5 June 1939 | Harold Spencer Jones | The earth as a clock [24] |
16 June 1938 | Armin Otto Leuschner | The minor planets of the Hecuba group [25] |
28 May 1937 | Basil Schonland | The lightning discharge |
5 June 1935 | John Stanley Plaskett | The dimensions and structure of the galaxy. [26] |
8 May 1934 | Edwin Hubble | Red-shifts in the spectra of nebulae [27] |
1 June 1933 | Henry Norris Russell | The composition of the stars [28] |
19 May 1932 | Arthur Milne | The white dwarf stars [29] |
30 May 1930 | Arthur Eddington | The Rotation of the Galaxy [30] |
31 May 1929 | Gilbert Walker | Some problems of Indian Meteorology [31] |
20 May 20, 1927 | Frank Stratton | Modern eclipse problems [32] |
28 May 1924 | John Joly | Radioactivity and the Surface History of the Earth [33] |
17 May 1923 | George Simpson | Scott's Polar Journey and the Weather [34] [35] |
23 May 1922 | Harold Jeffreys | The Nebular Hypothesis and Modern Cosmogony [36] |
17 May 1921 | John Knight Fotheringham | Historical Eclipses [37] |
12 June 1920 | Ralph Allen Sampson | On Gravitation and Relativity [38] |
22 May 1913 | Louis Agricola Bauer | The Earth's Magnetism [39] |
10 May 1910 | Henry Wilde | Celestial ejectamenta [40] |
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 surrounding the nucleus, and sometimes a tail of gas and dust gas blown out from the coma. These phenomena are due to the effects of solar radiation and the outstreaming solar wind plasma acting upon the nucleus of the comet. Comet nuclei range from a few hundred meters to tens of kilometers across and are composed of loose collections of ice, dust, and small rocky particles. The coma may be up to 15 times Earth's diameter, while the tail may stretch beyond one astronomical unit. If sufficiently close and bright, a comet may be seen from Earth without the aid of a telescope and can subtend an arc of up to 30° across the sky. Comets have been observed and recorded since ancient times by many cultures and religions.
Sir Fred Hoyle (24 June 1915 – 20 August 2001) was an English astronomer who formulated the theory of stellar nucleosynthesis and was one of the authors of the influential B2FH paper. He also held controversial stances on other scientific matters—in particular his rejection of the "Big Bang" theory (a term coined by him on BBC Radio) in favor of the "steady-state model", and his promotion of panspermia as the origin of life on Earth. He spent most of his working life at the Institute of Astronomy at Cambridge and served as its director for six years.
Halley's Comet, Comet Halley, or sometimes simply Halley, officially designated 1P/Halley, is a short-period comet visible from Earth every 75–79 years. Halley is the only known short-period comet that is regularly visible to the naked eye from Earth, and thus the only naked-eye comet that can appear twice in a human lifetime. It last appeared in the inner parts of the Solar System in 1986 and will next appear in mid-2061.
Astronomy is a natural science that studies celestial objects and phenomena. It uses mathematics, physics, and chemistry in order to explain their origin and evolution. Objects of interest include planets, moons, stars, nebulae, galaxies, meteoroids, asteroids, and comets. Relevant phenomena include supernova explosions, gamma ray bursts, quasars, blazars, pulsars, and cosmic microwave background radiation. More generally, astronomy studies everything that originates beyond Earth's atmosphere. Cosmology is a branch of astronomy that studies the universe as a whole.
Frank Donald Drake was an American astrophysicist and astrobiologist.
Thomas C. Van Flandern was an American astronomer and author specializing in celestial mechanics. Van Flandern had a career as a professional scientist, but was noted as an outspoken proponent of certain fringe views in astronomy, physics, and extra-terrestrial life. He also published the non-mainstream Meta Research Bulletin.
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Jan Hendrik Oort was a Dutch astronomer who made significant contributions to the understanding of the Milky Way and who was a pioneer in the field of radio astronomy. The New York Times called him "one of the century's foremost explorers of the universe"; the European Space Agency website describes him as "one of the greatest astronomers of the 20th century" and states that he "revolutionised astronomy through his ground-breaking discoveries." In 1955, Oort's name appeared in Life magazine's list of the 100 most famous living people. He has been described as "putting the Netherlands in the forefront of postwar astronomy."
Vera Florence Cooper Rubin was an American astronomer who pioneered work on galaxy rotation rates. She uncovered the discrepancy between the predicted and observed angular motion of galaxies by studying galactic rotation curves. By identifying the galaxy rotation problem, her work provided evidence for the existence of dark matter. These results were later confirmed over subsequent decades.
Fred Lawrence Whipple was an American astronomer, who worked at the Harvard College Observatory for more than 70 years. Amongst his achievements were asteroid and comet discoveries, the "dirty snowball" hypothesis of comets, and the invention of the Whipple shield.
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Nalin Chandra Wickramasinghe is a Sri Lankan-born British mathematician, astronomer and astrobiologist of Sinhalese ethnicity. His research interests include the interstellar medium, infrared astronomy, light scattering theory, applications of solid-state physics to astronomy, the early Solar System, comets, astrochemistry, the origin of life and astrobiology. A student and collaborator of Fred Hoyle, the pair worked jointly for over 40 years as influential proponents of panspermia. In 1974 they proposed the hypothesis that some dust in interstellar space was largely organic, later proven to be correct.
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EdmondHalley was an English astronomer, mathematician and physicist. He was the second Astronomer Royal in Britain, succeeding John Flamsteed in 1720.
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