astronomy

James Keeler and the Rings of Saturn

James Keeler and the Rings of Saturn

On September 10, 1857, American astronomer James Edward Keeler was born. Keeler is best known for being the astronomer who confirmed James Clerk Maxwell‘s theory that the rings of Saturn were not solid (requiring uniform rotation), but composed of meteoric particles. James Edward Keeler was born in La Salle, Illinois, to William F. Keeler, who served as a paymaster in the U.S. Navy at the time of the American Civil War, and…
Read more
Victor Ambartsumian and Theoretical Astrophysics

Victor Ambartsumian and Theoretical Astrophysics

On September 5, 1908, Soviet astronomer and astrophysicist Viktor Amazaspovich Ambartsumian was born. Ambartsumian is well known as one of the founders of theoretical astrophysics. He worked in the field of physics of stars and nebulae, stellar astronomy, dynamics of stellar systems and cosmogony of stars and galaxies, and contributed to mathematical physics. Victor Ambartsumian was the son of the prominent philologist and writer Hamazasp Asaturovich Ambartsumian, the translator of Homer’s Iliad into Armenian.…
Read more
Abu Ma’shar – the Greatest Astronomer of Baghdad

Abu Ma’shar – the Greatest Astronomer of Baghdad

On August 10, 787, Persian astrologer Abu Ma’shar, Latinized as Albumasar, was probably born. Abu Maʿshar thought to be the greatest astrologer of the Abbasid court in Baghdad. While he was not a major innovator, his practical manuals for training astrologers profoundly influenced Muslim intellectual history and, through translations, that of western Europe and Byzantium. He is known primarily for his theory that the world, created when the seven planets were in conjunction in the…
Read more
Iosif Shklovsky and the Search for Intelligent Life in the Universe

Iosif Shklovsky and the Search for Intelligent Life in the Universe

On July 1, 1916, Soviet astronomer and astrophysicist Iosif Shklovsky was born. Shklovsky identified the continuum radiation of the Crab Nebula as synchrotron radiation, and he linked x-ray stars to binary systems containing a neutron star. He is also remembered for his 1962 book on extraterrestrial life, the revised and expanded version of which was co-authored by American astronomer Carl Sagan in 1966 as ‘Intelligent Life in the Universe’. Iosif Shklovsky studied at…
Read more
Jacobus Cornelius Kapteyn and the Rotation of the Milky Way

Jacobus Cornelius Kapteyn and the Rotation of the Milky Way

On June 18, 1922, Dutch astronomer Jacobus Cornelius Kapteyn passed away. Kapteyn carried out extensive studies of the Milky Way and was the discoverer of evidence for galactic rotation. He used photography and statistical methods in determining the motions and spatial distribution of stars, the first major step after the works of William and John Herschel. Jacobus Cornelius Kapteyn was born on 19 January 1851 in Barneveld,in the Dutch province of Gelderland,…
Read more
Edward Walter Maunder and the Sunspots

Edward Walter Maunder and the Sunspots

On April 12, 1851, British astronomer Edward Walter Maunder was born. Maunder was the first to take the British Civil Service Commission examination for the post of photographic and spectroscopic assistant at the Royal Observatory, Greenwich. He is best remembered for his study of sunspots and the solar magnetic cycle that led to his identification of the period from 1645 to 1715 that is now known as the Maunder Minimum. “If we…
Read more
Donald Howard Menzel and the UFOs

Donald Howard Menzel and the UFOs

On April 11, 1901, theoretical astronomer and astrophysicist Donald Howard Menzel was born. Menzel discovered the physical properties of the solar chromosphere, the chemistry of stars, the atmosphere of Mars, and the nature of gaseous nebulae. Moreover, he was best known for his arguments against the existence of extraterrestrial UFO‘s. Donald Howard Menzel already collected rocks as a child and built a chemistry laboratory in the cellar of his family’s house when…
Read more
John Dreyer and the New General Catalogue of Nebulae and Clusters

John Dreyer and the New General Catalogue of Nebulae and Clusters

On February 13, 1852, Danish-Irish astronomer John Louis Emil Dreyer was born. Dreyer’s major contribution was the monumental New General Catalogue of Nebulae and Clusters of Stars (based on William Herschels Catalogue of Nebulae), the catalogue numbers of which are still in use today. John Louis Emil Dreyer was the son of Lieutenant General John Christopher Dreyer, back then the Danish Minister for War and the Navy. From early age, Dreyer became enthusiastic…
Read more
John Couch Adams and the Discovery of Planet Neptune

John Couch Adams and the Discovery of Planet Neptune

On January 21, 1821, English mathematician and astronomer John Couch Adams passed away. Adams most famous achievement was predicting the existence and position of Neptune, using only mathematics. The calculations were made to explain discrepancies with Uranus‘s orbit and the laws of Kepler and Newton. At the same time, but unknown to each other, the same calculations were made by Urbain Le Verrier.[5] John Couch Adams was born at Lidcot, a farm…
Read more
Project Diana hits the Moon

Project Diana hits the Moon

On January 10, 1946 the U.S. Army Project Diana team detected radar signals reflected off the moon‘s surface. This was the first experiment in radar astronomy and the first active attempt to probe another celestial body. Project Diana was designed in order to bounce radar signals off the Moon and receive the reflected signals, which became the first known attempt to probe another celestial body. Pioneer of the project was  John H.…
Read more
Relation Browser
Timeline
0 Recommended Articles:
0 Recommended Articles: