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English Wikipedia references for Nasa.gov 451-500 of 26570
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| Mariner 8 Mariner-H, also commonly known as Mariner 8, was (along with Mariner 9) part of the Mariner Mars 71 project. It was intended to go into Mars orbit and return images and data. Mariner_8 | |
| Unpowered aircraft Unpowered_aircraft | |
| Jupiter Jupiter | |
| Photosphere The photosphere of an astronomical object is the region from which externally received light originates. The term itself is derived from Ancient Greek roots, φως¨- φωτος/photos meaning "light" and σφαιρα/sphaira meaning "ball," in reference to the fact that it is a ball-shaped surface perceived to emit light. It extends into a star's surface until the gas becomes opaque, equivalent to an optical depth of approximately 2/3. Photosphere | |
| Large-scale structure of the cosmos Talk:Large-scale_structure_of_the_cosmos | |
| Laboratory for Atmospheric and Space Physics Laboratory for Atmospheric and Space Physics (LASP) is a research organization at the University of Colorado at Boulder. LASP is a world-class research institute with over 100 research scientists ranging in fields from solar influences, to Earth's and other planetary atmospherics processes, space weather, space plasma and dusty plasma physics. Laboratory_for_Atmospheric_and_Space_Physics | |
| Zodiac Talk:Zodiac | |
| Space Shuttle program/Archive 2 Talk:Space_Shuttle_program/Archive_2 | |
| Space suit space suit is a complex system of garments, equipment and environmental systems designed to keep a person alive and comfortable in the harsh environment of outer space. This applies to extra-vehicular activity (EVA) outside spacecraft orbiting Earth, and has applied to walking, and riding the Lunar Rover, on the Moon. Space_suit | |
| New England Digital New England Digital Corp. (1976–1992), based in White River Junction, Vermont, was best known for its signature product, the Synclavier System. Originally developed as the "Dartmouth Digital Synthesizer" by Dartmouth College professor Jon Appleton, in association with NED founders Cameron W. New_England_Digital | |
| Supernova remnant supernova remnant (SNR) is the structure resulting from the gigantic explosion of a star in a supernova. The supernova remnant is bounded by an expanding shock wave, and consists of ejected material expanding from the explosion, and the interstellar material it sweeps up and shocks along the way. There are two possible routes to a supernovaneutron star or a black hole; or a white dwarf star may accumulate (accrete) material from a companion star until it reac Supernova_remnant | |
| Easter Talk:Easter | |
| John Philip Sousa John Philip Sousa (November 6, 1854 American composer and conductor of the late Romantic era, known particularly for American military and patriotic marches. Because of his mastery of march composition and resultant prominence, he is known as "The March King." In public, he was typically referenced by his full name. John_Philip_Sousa | |
| Hubble Space Telescope The Hubble Space Telescope (HST) is a space telescope that was carried into orbit by the space shuttle in April 1990. It is named after the American astronomer Edwin Hubble. Although not the first space telescope, the Hubble is one of the largest and most versatile, and is well-known as both a vital research tool and a public relations boon for astronomy. Hubble_Space_Telescope | |
| Geosynchronous orbit geosynchronous orbit is an orbit around the Earth with an orbital period matching the Earth's sidereal rotation period. This synchronization means that for an observer at a fixed location on Earth, a satellite in a geosynchronous orbit returns to exactly the same place in the sky at exactly the same time each day. Geosynchronous_orbit | |
| Pulsed inductive thruster Pulsed inductive thrusters (or PITs) are a form of ion thruster, used in spacecraft propulsion. A PIT uses perpendicular electric and magnetic fields to accelerate a propellant. A nozzle releases a puff of gas (usually ammonia or argon) which spreads across a flat induction coil of wire about 1 meter across. Pulsed_inductive_thruster | |
| Variable Specific Impulse Magnetoplasma Rocket Variable Specific Impulse Magnetoplasma Rocket (VASIMR) is an electro-magnetic thruster for spacecraft propulsion. It uses radio waves to ionize a propellant and magnetic fields to accelerate the resulting plasma to generate thrust.The method of heating plasma used in VASIMR was originally developed as a result of research into nuclear fusion. Variable_Specific_Impulse_Magnetoplasma_Rocket | |
| Genetic algorithm genetic algorithm (GA) is a search technique used in computing to find exact or approximate solutions to optimization and search problems. Genetic algorithms are categorized as global search heuristics. Genetic algorithms are a particular class of evolutionary algorithms(EA) that use techniques inspired by evolutionary biology such as inheritance, mutation, selection, and crossover (also called recombination). Genetic_algorithm | |
| Magnetohydrodynamics Magnetohydrodynamics (MHD) (magnetofluiddynamics or hydromagnetics) is the academic discipline which studies the dynamics of electrically conducting fluids. Examples of such fluids include plasmas, liquid metals, and salt water. The word magnetohydrodynamics (MHD) is derived from magneto- meaning magnetic field, and hydro- meaning liquid, and -dynamics meaning movement. The field of MHD was initiated by Hannes Alfvén, for which he received the Nobel Prize in Physics in 1970. Magnetohydrodynamics | |
| Electromagnetic radiation and health Electromagnetic radiation can be classified into ionizing radiation and non-ionizing radiation, based on whether it is capable of ionizing atoms and breaking chemical bonds. Ultraviolet and higher frequencies, such as X-rays or gamma rays are ionizing. These pose their own special hazardsradiation and radiation poisoning.Non-ionizing radiation, discussed here, is associated with two major potential hazardsinduced electric current caused by radiation can generate sparks and create a fire or explosive hazard. Electromagnetic_radiation_and_health | |
| Geostationary orbit geostationary orbit (GEO) is a geosynchronous orbit directly above the Earth's equator (0° latitude), with a period equal to the Earth's rotational period and an orbital eccentricity of approximately zero. From locations on the surface of the Earth, geostationary objects appear motionless in the sky, making the GEO an orbit of great interest to operators of communications and weather satellites. Geostationary_orbit | |
| Phased array This article is about general theory and electromagnetic phased array. For the ultrasonic and medical imaging application, see phased array ultrasonics.In wave theory, a phased array is a group of antennas in which the relative phases of the respective signals feeding the antennas are varied in such a way that the effective radiation pattern of the array is reinforced in a desired direction and suppressed in undesired directions. Phased_array | |
| Thermodynamic temperature Thermodynamic temperature is the absolute measure of temperature and is one of the principal parameters of thermodynamics. Thermodynamic temperature is an “absolute” scale because it is the measure of the fundamental property underlying temperaturenull or zero point, absolute zero, is the temperature at which the particle constituents of matter have minimal motion and can be no colder. Thermodynamic_temperature | |
| LIDAR LIDAR (Light Detection and Ranging) is an optical remote sensing technology that measures properties of scattered light to find range and/or other information of a distant target. The prevalent method to determine distance to an object or surface is to use laser pulses. Like the similar radar technology, LIDAR | |
| Augustus/Archive 2 Talk:Augustus/Archive_2 | |
| Brian May Brian Harold May, CBE (born 19 July 1947) is a musician and astrophysicist most widely known as the lead guitarist of the rock band Queen. As a guitarist he uses his home built guitar, "Red Special", and has composed hits such as "Tie Your Mother Down", "We Will Rock You", "Who Wants to Live Forever", "Hammer to Fall", "Save Me", "Fat Bottomed Girls" and "I Want It All". Currently the Chancellor of Liverpool John Moores University, May lives in Southampton, Britain. Brian_May | |
| Christiaan Huygens Christiaan Huygens (; Dutch ; 14 April 1629 Dutch mathematician, astronomer, physicist, and horologist. His work included early telescopic studies, investigations and inventions related to time keeping, and studies of both optics and centrifugal force. Christiaan_Huygens | |
| Walter Mondale Walter Frederick Mondale (born January 5, 1928) is an American politician and member of the Democratic-Farmer-Labor Party. He was the 42nd Vice President of the United States (1977–1981) under President Jimmy Carter, a two-term United States Senator from Minnesota, and the Democratic Party nominee for president in 1984. Later, during the administration of Democratic President Bill Clinton he served as the United States Ambassador to Japan from 1993-1996. Walter_Mondale | |
| Éamon de Valera Éamon_de_Valera | |
| Peanuts Peanuts is a syndicated daily and Sunday comic strip written and illustrated by Charles M. Schulz, which ran from October 2, 1950, to February 13, 2000 (the day after Schulz's death), continuing in reruns afterward. The strip is considered to be one of the most popular and influential in the history of the medium, with 17,897 strips published in all, making it "arguably the longest story ever told by one human being", according to Professor Robert Thompson of Syracuse University. Peanuts | |
| Software bug Talk:Software_bug | |
| Logarithmic spiral Logarithmic_spiral | |
| Kirkendall effect Kirkendall effect is the migration of markers that occurs when markers are placed at the interface between an alloy and a metal, and the whole is heated to a temperature where diffusion is possible; the markers will move towards the alloy region. For example, using molybdenum as a marker between copper and brass (a copper-zinc alloy), molybdenum atoms will migrate towards the brass. Kirkendall_effect | |
| The Dark Side of the Moon The Dark Side of the Moon (titled Dark Side of the Moon in the 1993 CD edition) is a concept album by Pink Floyd. It was released on 17The Dark Side of the Moon built on the ideas Pink Floyd had explored in their live shows and recordings, but it lacked the extended instrumental excursions which had characterised their work following the departure of founding member, principal composer and lyricist, Syd Barrett. The_Dark_Side_of_the_Moon | |
| 1630s BC 1630s_BC | |
| 1690s BC 1690s_BC | |
| 1660s BC 1660s_BC | |
| Gloster Meteor Gloster_Meteor | |
| J. Michael Straczynski Joseph Michael Straczynski (born July 17, 1954), known professionally as J. Michael Straczynski and informally as Joe Straczynski or JMS, is an award-winning American writer/producer. He works in a variety of media, including films, television series, novels, short stories, comic books, and radio dramas. J._Michael_Straczynski | |
| Sonoluminescence Sonoluminescence is the emission of short bursts of light from imploding bubbles in a liquid when excited by sound. Sonoluminescence | |
| Cyclone meteorology, a cyclone refers to an area of closed, circular fluid motion rotating in the same direction as the Earth. This is usually characterized by inward spiraling winds that rotate counter clockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere of the Earth.Large-scale cyclonic circulations are almost always centred on areas of low atmospheric pressure. Cyclone | |
| Comparison of Java and C++ This is a comparison of the Java programming language with the C++ programming language. Also refer this. Comparison_of_Java_and_C++ | |
| Hubble's law Hubble's law describes the observation in physical cosmology that the velocity at which various galaxies are receding from the earth is proportional to their distance from us. The law was first formulated by Edwin Hubble in 1929 after nearly a decade of observations. Hubble's_law | |
| Hubble's law Talk:Hubble's_law | |
| Callisto (moon) Callisto_(moon) | |
| Europa (moon) Europa_(moon) | |
| 2010 2010 | |
| Green flash Green flashes and green rays are optical phenomena that occur shortly after sunset or before sunrise, when a green spot is visible for a short period of time above the sun, or a green ray shoots up from the sunset point. Green flashes are actually a group of phenomena stemming from different causes, and some are more common than others. Green_flash | |
| Antarctic krill Antarctic krill (Euphausia superba) is a species of krill found in the Antarctic waters of the Southern Ocean. Antarctic krill are shrimp-like invertebrates or crustaceans that live in large schools, called swarms, sometimes reaching densities of 10,000–30,000 individual animals per cubic meter. Antarctic_krill | |
| Duct tape Duct tape (sometimes called duck tape; see under Etymology) is a vinyl, fabric-reinforced, multi-purpose pressure sensitive tape with a soft and tacky pressure sensitive adhesive. It is generally silver or black in color but many other colors and transparent tapes have recently become available. Duct_tape |
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