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Tombaugh Regio
Tombaugh Regio () is the largest bright surface feature of the dwarf planet Pluto. It is just north of the equator, to the northeast of Cthulhu Macula and to the northwest of Krun Macula, which are both dark features. Its western lobe, a -wide plain of nitrogen and other ices lying within a basin, is named Sputnik Planitia. The eastern lobe consists of high-albedo uplands thought to be coated by nitrogen transported through the atmosphere from Sputnik Planitia, and then deposited as ice. Some of this nitrogen ice then returns to Sputnik Planitia via glacial flow. Named after Clyde Tombaugh, the discoverer of Pluto, it was nicknamed Pluto's "heart" after its shape. Description Tombaugh Regio is a large, light-colored region about across. The two lobes of the feature are geologically distinct. The western lobe, Sputnik Planitia, is smoother than the eastern, and they are of slightly different colors. Early speculation was that the western lobe may be a large impact crater filled ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NASA
The National Aeronautics and Space Administration (NASA ) is an independent agency of the US federal government responsible for the civil space program, aeronautics research, and space research. NASA was established in 1958, succeeding the National Advisory Committee for Aeronautics (NACA), to give the U.S. space development effort a distinctly civilian orientation, emphasizing peaceful applications in space science. NASA has since led most American space exploration, including Project Mercury, Project Gemini, the 1968-1972 Apollo Moon landing missions, the Skylab space station, and the Space Shuttle. NASA supports the International Space Station and oversees the development of the Orion spacecraft and the Space Launch System for the crewed lunar Artemis program, Commercial Crew spacecraft, and the planned Lunar Gateway space station. The agency is also responsible for the Launch Services Program, which provides oversight of launch operations and countdown management f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Geological Features On Pluto
This is a list of named geological features on Pluto, identified by scientists working with data from the '' New Horizons'' spacecraft. The International Astronomical Union (IAU) officially approved the first 14 names on 8 August 2017 (announced 7 September 2017), with additional names following in each subsequent year, but many of the names listed on this page are still informal. The IAU has determined that names will be chosen from the following themes: * Names for the underworld from the world's mythologies * Gods, goddesses, and dwarfs associated with the underworld * Heroes and other explorers of the underworld * Writers associated with Pluto and the Kuiper belt * Pioneering space missions and spacecraft * Scientists and engineers associated with Pluto and the Kuiper belt Cavi A cavus is a hollow or steep-sided depression. The following is a list of official and unofficial names chosen by the '' New Horizons'' team. Colles A collis is a low hill. Plutonian colles a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glacier
A glacier (; ) is a persistent body of dense ice that is constantly moving under its own weight. A glacier forms where the accumulation of snow exceeds its Ablation#Glaciology, ablation over many years, often Century, centuries. It acquires distinguishing features, such as Crevasse, crevasses and Serac, seracs, as it slowly flows and deforms under stresses induced by its weight. As it moves, it abrades rock and debris from its substrate to create landforms such as cirques, moraines, or fjords. Although a glacier may flow into a body of water, it forms only on land and is distinct from the much thinner sea ice and lake ice that form on the surface of bodies of water. On Earth, 99% of glacial ice is contained within vast ice sheets (also known as "continental glaciers") in the polar regions, but glaciers may be found in mountain ranges on every continent other than the Australian mainland, including Oceania's high-latitude oceanic island countries such as New Zealand. Between lati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Convection Cell
In the field of fluid dynamics, a convection cell is the phenomenon that occurs when density differences exist within a body of liquid or gas. These density differences result in rising and/or falling currents, which are the key characteristics of a convection cell. When a volume of fluid is heated, it expands and becomes less dense and thus more buoyant than the surrounding fluid. The colder, denser part of the fluid descends to settle below the warmer, less-dense fluid, and this causes the warmer fluid to rise. Such movement is called convection, and the moving body of liquid is referred to as a ''convection cell''. This particular type of convection, where a horizontal layer of fluid is heated from below, is known as Rayleigh–Bénard convection. Convection usually requires a gravitational field, but in microgravity experiments, thermal convection has been observed without gravitational effects. Fluids are generalized as materials that exhibit the property of flow; however, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hillary Montes
The Hillary Montes or (less officially, Hillary Mountains) are mountains that reach above the surface of the dwarf planet Pluto. They are located northwest of Tenzing Montes in the southwest border area of Sputnik Planitia in the south of Tombaugh Regio (or the part of Tombaugh Regio south of the equator). The Hillary Montes were first viewed by the ''New Horizons'' spacecraft on 14 July 2015, and announced by NASA on 24 July 2015. Naming The mountains are named after Sir Edmund Hillary, New Zealand mountaineer, who, along with Nepalese Sherpa mountaineer, Tenzing Norgay, were the first climbers to reach the summit of the highest peak on Earth, Mount Everest, on 29 May 1953. On 7 September 2017, the name ''Hillary Montes'' was officially approved together with the names of Tombaugh Regio and twelve other nearby surface features. Relative size The Hillary Montes rise to high from base to peak, about half as high as the Tenzing Montes. The Hillary Montes are similar in height t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norgay Montes
The Tenzing Montes (formerly Norgay Montes) are icy mountains near the Hillary Montes that reach up to above the surface of the dwarf planet Pluto, bordering the southwest region of Sputnik Planitia in the south of Tombaugh Regio (or the part of Tombaugh Regio south of the equator). They are the highest mountain range on Pluto, and also the steepest, with a mean slope of 19.2 degrees. Naming The mountains, first viewed by the ''New Horizons'' spacecraft on 14 July 2015, and announced by NASA on 15 July 2015, are named after the Nepalese mountaineer Tenzing Norgay, who, along with Sir Edmund Hillary, made the first successful ascent of the highest peak on Earth, Mount Everest (29 May 1953). The mountains were informally called ''Norgay Montes'' by the ''New Horizons'' team, but that name was later changed from ''Norgay'' to ''Tenzing''.In Nepali, the last name is given first, so ''Tenzing'' is the last name while ''Norgay'' is the first name. On 7 September 2017, the name ''Ten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carbon Monoxide
Carbon monoxide (chemical formula CO) is a colorless, poisonous, odorless, tasteless, flammable gas that is slightly less dense than air. Carbon monoxide consists of one carbon atom and one oxygen atom connected by a triple bond. It is the simplest molecule of the oxocarbon family. In coordination complexes the carbon monoxide ligand is called carbonyl. It is a key ingredient in many processes in industrial chemistry. The most common source of carbon monoxide is the partial combustion of carbon-containing compounds, when insufficient oxygen or heat is present to produce carbon dioxide. There are also numerous environmental and biological sources that generate and emit a significant amount of carbon monoxide. It is important in the production of many compounds, including drugs, fragrances, and fuels. Upon emission into the atmosphere, carbon monoxide affects several processes that contribute to climate change. Carbon monoxide has important biological roles across phylogenetic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hubble Space Telescope
The Hubble Space Telescope (often referred to as HST or Hubble) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation. It was not the first space telescope, but it is one of the largest and most versatile, renowned both as a vital research tool and as a public relations boon for astronomy. The Hubble telescope is named after astronomer Edwin Hubble and is one of NASA's Great Observatories. The Space Telescope Science Institute (STScI) selects Hubble's targets and processes the resulting data, while the Goddard Space Flight Center (GSFC) controls the spacecraft. Hubble features a mirror, and its five main instruments observe in the ultraviolet, visible, and near-infrared regions of the electromagnetic spectrum. Hubble's orbit outside the distortion of Earth's atmosphere allows it to capture extremely high-resolution images with substantially lower background light than ground-based telescopes. It has recorded some of the most detaile ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Walt Disney Company
The Walt Disney Company, commonly known as Disney (), is an American multinational mass media and entertainment conglomerate headquartered at the Walt Disney Studios complex in Burbank, California. Disney was originally founded on October 16, 1923, by brothers Walt and Roy O. Disney as the Disney Brothers Studio; it also operated under the names the Walt Disney Studio and Walt Disney Productions before changing its name to the Walt Disney Company in 1986. Early on, the company established itself as a leader in the animation industry, with the creation of the widely popular character Mickey Mouse, who is the company's mascot, and the start of animated films. After becoming a major success by the early 1940s, the company started to diversify into live-action films, television, and theme parks in the 1950s. Following Walt's death in 1966, the company's profits began to decline, especially in the animation division. Once Disney's shareholders voted in Michael Eisner as the he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
