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Brontë (Mercurian Crater)
Brontë is a crater on Mercury. It has a diameter of . Its name was adopted by the International Astronomical Union in 1976. Bronte is named for English writers Charlotte Brontë, who lived from 1816 to 1855, Emily Brontë, who lived from 1818 to 1848, and Anne Brontë, who lived from 1820 to 1849, and English writer and artist Branwell Brontë, who lived from 1817 to 1848. Brontë forms a crater pair with Degas immediately to the south. at eSky Brontë is covered with and s from the much younger Degas. Both craters lie within [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MESSENGER
Messenger, Messengers, The Messenger or The Messengers may refer to: People * Courier, a person or company that delivers messages, packages, or mail * Messenger (surname) * Bicycle messenger, a bicyclist who transports packages through cities * Messenger-at-arms, an officer of the Scottish Court of Session * Messenger of the Court, a court officer responsible for carrying communications and executing other orders * Prophets and messengers in Islam * Muhammad and other prophets in Islam, who were known as Messengers of Allah (God) Science and technology Biology and chemistry * Chemical messenger, such as a hormone or neurotransmitter, a molecule used for cellular signalling * Messenger RNA (mRNA), RNA that carries information from DNA to the ribosome sites of protein synthesis in a cell Electronics and computing *Instant messenger, a tool for online text communication **Facebook Messenger, an instant messaging service by Meta (Facebook) **Microsoft Messenger service, an instant me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shakespeare Quadrangle
The Shakespeare quadrangle is a region of Mercury running from 90 to 180° longitude and 20 to 70° latitude. It is also called Caduceata. The Borealis quadrangle is north of Shakespeare quadrangle. To the west is Raditladi quadrangle, and to the east is Victoria quadrangle. To the southwest is Tolstoj quadrangle, and to the southeast is Beethoven quadrangle. Mariner 10 imaging Prior to the images taken by MESSENGER, the only spacecraft images of Mercury were those taken by the Mariner 10 spacecraft, which made three passes of the planet in 1974–75 (Murray and others, 1974a,b; Strom and others, 1975a). Most images used in mapping the geology of the Shakespeare quadrangle were taken during the near-equatorial first pass, with close encounter or the dark side of the planet. The second, south-polar pass did not image the Shakespeare quadrangle at high resolution. High-resolution images of small areas within the quadrangle were also obtained during the third pass, when th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mercury (planet)
Mercury is the first planet from the Sun. It is a rocky planet with a trace atmosphere. While it is the List of Solar System objects by size, smallest and least massive planet of the Solar System, its surface gravity is slightly higher than that of Mars. The surface of Mercury is similar to Earth's Moon, heavily Impact crater, cratered, with expansive rupes system, generated from thrust faults, and bright ray systems, formed by ejecta. Its largest crater, Caloris Planitia, has a diameter of , which is about one-third the diameter of the planet (). Being the most inferior planet, inferior orbiting planet it appears in Earth's sky, always close to the Sun, either as a "morning star" or an "evening star". It stays most of the time the closest to all other planets and is the planet with the highest delta-v needed to travel to from all other planets of the Solar System. Mercury's sidereal year (88.0 Earth days) and sidereal day (58.65 Earth days) are in a 3:2 ratio. This relation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charlotte Brontë
Charlotte Nicholls (; 21 April 1816 – 31 March 1855), commonly known as Charlotte Brontë (, commonly ), was an English novelist and poet, the eldest of the three Brontë family, Brontë sisters who survived into adulthood and whose novels became classics of English literature. She is best known for her novel ''Jane Eyre'', which she published under the male pseudonym Currer Bell. ''Jane Eyre'' went on to become a success in publication, and is widely held in high regard in the gothic fiction genre of literature. Brontë enrolled in school at Roe Head, Mirfield, in January 1831, aged 14 years. She left the year after to teach her sisters, Emily Brontë, Emily and Anne Brontë, Anne, at home, then returned to Roe Head in 1835 as a teacher. In 1839, she undertook the role of governess for the Sidgwick family, but left after a few months. The three sisters attempted to open a school in Haworth but failed to attract pupils. Instead, they turned to writing; they each first publ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emily Brontë
Emily Jane Brontë (, commonly ; 30 July 1818 – 19 December 1848) was an English writer best known for her 1847 novel, ''Wuthering Heights''. She also co-authored a book of poetry with her sisters Charlotte Brontë, Charlotte and Anne Brontë, Anne, entitled ''Poems by Currer, Ellis, and Acton Bell, Poems by Currer, Ellis and Acton Bell''. Emily was the fifth of six Brontë family, Brontë siblings, four of whom survived into adulthood. Her mother died when she was three, leaving the children in the care of their aunt, Elizabeth Branwell, and aside from brief intervals at school, she was mostly taught at home by her father, Patrick Brontë, who was the curate of Haworth. She was very close to her siblings, especially her younger sister Anne, and together they wrote little books and journals depicting imaginary worlds. She is described by her sister Charlotte as very shy, but also strong-willed and nonconforming, with a keen love of nature and animals. Some biographers believ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anne Brontë
Anne Brontë (, commonly ; 17 January 1820 – 28 May 1849) was an English novelist and poet, the youngest member of the Brontë literary family. Anne Brontë was the daughter of Maria ( Branwell) and Patrick Brontë, a poor Irish clergyman in the Church of England. Anne lived most of her life with her family at the parish of Haworth on the Yorkshire Dales. Otherwise, she attended a boarding school in Mirfield between 1836 and 1837, and between 1839 and 1845 lived elsewhere working as a governess. In 1846, she published a book of poems with her sisters and later two novels, initially under the pen name Acton Bell. Her first novel, '' Agnes Grey'', was published in 1847 at the same time as ''Wuthering Heights'' by her sister Emily Brontë. Anne's second novel, '' The Tenant of Wildfell Hall'', was published in 1848. ''The Tenant of Wildfell Hall'' is often considered one of the first feminist novels. Anne died at 29, most likely of pulmonary tuberculosis. After her death, h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Branwell Brontë
Patrick Branwell Brontë (, commonly ; 26 June 1817 – 24 September 1848) was an English painter and writer. He was the only son of the Brontë family, and brother of the writers Charlotte Brontë, Charlotte, Emily Brontë, Emily, and Anne Brontë, Anne. Brontë was rigorously tutored at home by his father, and earned praise for his poetry and translations from the classics. However, he drifted between jobs, supporting himself by portrait-painting, and gave way to drug and alcohol addiction, apparently worsened by a failed relationship with a married woman. Brontë died at the age of 31. Youth Branwell Brontë was the fourth of six children and the only son of Patrick Brontë (1777–1861) and his wife, Maria Branwell, Maria Branwell Brontë (1783–1821). He was born in a house (now known as the Brontë Birthplace) in Market Street, Thornton, West Yorkshire, Thornton, near Bradford, West Riding of Yorkshire, and moved with his family to Haworth when his father was appointed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NASA
The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the federal government of the United States, US federal government responsible for the United States's civil list of government space agencies, space program, aeronautics research and outer space, space research. National Aeronautics and Space Act, Established in 1958, it succeeded the National Advisory Committee for Aeronautics (NACA) to give the American space development effort a distinct civilian orientation, emphasizing peaceful applications in space science. It has since led most of America's space exploration programs, including Project Mercury, Project Gemini, the 1968–1972 Apollo program missions, the Skylab space station, and the Space Shuttle. Currently, NASA supports the International Space Station (ISS) along with the Commercial Crew Program and oversees the development of the Orion (spacecraft), Orion spacecraft and the Sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 development through global cooperation. It was founded on 28 July 1919 in Brussels, Belgium and is based in Paris, France. The IAU is composed of individual members, who include both professional astronomers and junior scientists, and national members, such as professional associations, national societies, or academic institutions. Individual members are organised into divisions, committees, and working groups centered on particular subdisciplines, subjects, or initiatives. the Union had 85 national members and 12,734 individual members, spanning 90 countries and territories. Among the key activities of the IAU is serving as a forum for scientific conferences. It sponsors nine annual symposia and holds a triannual General Assembly that sets policy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Degas (crater)
Degas is a rayed crater on Mercury at latitude 37.5 N, longitude 127 W. Its diameter is . It was named after the French impressionist painter Edgar Degas in 1979. The rays consist of light colored material blasted out during the crater's formation. Craters older than Degas are covered by the ray material, while younger craters are seen superimposed on the rays. Degas forms a crater pair with Brontë to the north. Both lie near the center of Sobkou Planitia. The crater's floor contains cracks that formed as the pool of impact melt cooled and shrank. The high-reflectance material on the walls and in the central portion of the crater probably has a composition distinct from that of the crater floor and surroundings. The illumination conditions and down-slope movement of eroded material exposing fresh rock also contribute to the bright appearance. The floor of Degas exposed low-reflectance material (LRM). Degas is one of the largest craters of the Kuiperian system on Mercury. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ejecta
Ejecta (; ) are particles ejected from an area. In volcanology, in particular, the term refers to particles including pyroclastic rock, pyroclastic materials (tephra) that came out of a explosive eruption, volcanic explosion and magma eruption volcano, volcanic vent, or volcanic crater, crater, has traveled through the air or water, and fell back to the ground surface or seabed, ocean floor. Volcanology Typically in volcanology, ejecta is a result of explosive eruptions. In an explosive eruption, large amounts of volcanic gas, gas are dissolved in extremely viscous lava; this lava froths to the surface until the material is expelled rapidly due to the trapped pressure. Sometimes in such an event a lava plug or volcanic neck forms from lava that solidifies inside a volcano's vent, causing heat and pressure to build up to an extreme with no way to escape. When the blockage breaks and cannot sustain itself any longer, a more violent eruption occurs, which allows materials to be e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Secondary Crater
Secondary craters are impact craters formed by the ejecta that was thrown out of a larger crater. They sometimes form radial crater chains. In addition, secondary craters are often seen as clusters or rays surrounding primary craters. The study of secondary craters exploded around the mid-twentieth century when researchers studying surface craters to predict the age of planetary bodies realized that secondary craters contaminated the crater statistics of a body's crater count. Formation When a velocity-driven extraterrestrial object impacts a relatively stationary body, an impact crater forms. Initial crater(s) to form from the collision are known as primary craters or impact craters. Material expelled from primary craters may form secondary craters (secondaries) under a few conditions: # Primary craters must already be present. # The gravitational acceleration of the extraterrestrial body must be great enough to drive the ejected material back toward the surface. # The velocity by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
