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English Wikipedia references for Nasa.gov 101-150 of 26570
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| Django Reinhardt Jean "Django" Reinhardt (23 January 1910 – 16 May 1953) was a Belgian Gypsy jazz guitarist.One of the first prominent European jazz musicians, Reinhardt remains one of the most renowned jazz guitarists due to his innovative and distinctive playing. With violinist Stéphane Grappelli he cofounded the Quintette du Hot Club de France, described by critic Thom Jurek as "one of the most original bands in the history of recorded jazz." Django_Reinhardt | |
| Deep Space 1 Deep Space 1 (DS1) of the NASA New Millennium Program is a spacecraft dedicated to testing its payload of advanced, high risk technologies. Launched on 24 October 1998, three of twelve technologies on board had to work within a few minutes of separation from the carrier rocket for the mission to continue. The Deep Space series was continued by the Deep Space 2 probes, which were launched in January 1999 on Mars Polar Lander and were intended to strike the surface of Mars. Deep_Space_1 | |
| Earth Earth | |
| Ecliptic The ecliptic is the apparent path that the Sun traces out in the sky during the year. As it appears to move in the sky in relation to the stars, the apparent path aligns with the planets throughout the course of the year. More accurately, it is the intersection of a spherical surface, the celestial sphere, with the ecliptic plane, which is Ecliptic | |
| Earth/Archive 7 Talk:Earth/Archive_7 | |
| Eocene The Eocene epoch, lasting from 55.8 ± 0.2 to 33.9 ± 0.1 Ma (million years ago), is a major division of the geologic timescale and the second epoch of the Palaeogene period in the Cenozoic era. The Eocene spans the time from the end of the Paleocene epoch to the beginning of the Oligocene epoch. Eocene | |
| Electrical telegraph electrical telegraph is a telegraph that uses electric signals. The electromagnetic telegraph is a device for human-to-human transmission of coded text messages over wire. Electrical_telegraph | |
| Electron Electron | |
| Extraterrestrial life Extraterrestrial life is defined as life which does not originate from planet Earth. It is the subject of astrobiology and its existence remains hypothetical since to date no credible evidence of extraterrestrial life has been discovered which has been generally accepted by the mainstream scientific community. Extraterrestrial_life | |
| Eugene, Oregon Eugene () is the second largest city in the U.S. State of Oregon and the county seat of Lane County. It is located at the south end of the Willamette Valley, at the confluence of the McKenzie and Willamette rivers, about 50 miles (86Oregon Coast. According to the official 2008 population figures Eugene is the second largest city in the state of Oregon, with an estimated population of 154,620, and center of the third largest metropolitan population. Eugene,_Oregon | |
| E (mathematical constant) E_(mathematical_constant) | |
| Earned value management Earned Value Management (EVM) is a project management technique for measuring project progress in an objective manner. EVM has the ability to combine measurements of scope, schedule, and cost in a single integrated system. When properly applied, EVM provides an early warning of performance problems. Additionally, EVM promises to improve the definition of project scope, prevent scope creep, communicate objective progress to stakeholders, and keep the project team focused on achieving progress. Earned_value_management | |
| Era An era is a commonly used word for long period of time. When used in science, for example geology, eras denote clearly defined periods of time of arbitrary but well defined length, such as for example the Mesozoic era from 252 Ma–66 Ma, delimited by a start event and an end event. Era | |
| Extrasolar planet An extrasolar planet, or exoplanet, is a planet beyond our Solar System, orbiting a star other than our Sun. , 353 exoplanets are listed in the Extrasolar Planets Encyclopaedia. The vast majority have been detected through radial velocity observations and other indirect methods rather than actual imaging. Extrasolar_planet | |
| Eclipse eclipse is an astronomical event that occurs when one celestial object moves into the shadow of another. The term is derived from the ancient Greek noun (''''' Solar System, it forms a type of syzygy—gravitational system along a straight line. The term eclipse is most often used to describe either a solar eclipse, when the Moon's shadow crosses the Earth's surface, or a lunar eclipse, when the Moon moves into the shadow of Earth. However, it can also refer to such events beyond the Ea Eclipse | |
| Extra-vehicular activity Extra-vehicular activity (EVA) is work done by an astronaut away from the Earth, and outside of a spacecraft. The term most commonly applies to an EVA made outside a craft orbiting Earth (a spacewalk), but also applies to an EVA made on the surface of the Moon (a moonwalk). Extra-vehicular_activity | |
| Extinction event An extinction event (also known asmass extinction; extinction-level event, ELE) is a sharp decrease in the number of species in a relatively short period of time. Mass extinctions affect most major taxonomic groups present at the time — birds, mammals, reptiles, amphibians, fish, invertebrates and other simpler life forms. They may be caused by one or both of extinction of an unusually large number of species in a short period. a sharp drop in the rate of speciation. Extinction_event | |
| Explorer program The Explorer program was the United States's first successful attempt to launch an artificial satellite. It began as a U.S. Army proposal to place a scientific satellite into orbit during the International Geophysical Year. That proposal was rejected in favor of the U.S. Explorer_program | |
| Ethanol Ethanol, also called ethyl alcohol, pure alcohol, grain alcohol, or drinking alcohol, is a volatile, flammable, colorless liquid. It is a psychoactive drug, best known as the type of alcohol found in alcoholic beverages and in modern thermometers. Ethanol is one of the oldest recreational drugs. Ethanol | |
| Electromagnetic spectrum electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation. The "electromagnetic spectrum" of an object is the characteristic distribution of electromagnetic radiation emitted or absorbed by that particular object.The electromagnetic spectrum extends from below frequencies used for modern radio through to gamma radiation at the short-wavelength end, covering wavelengths from thousands of kilometers down to a fraction of the size of an atom. Electromagnetic_spectrum | |
| Edwin Hubble Edwin Powell Hubble (November 29, 1889 – September 28, 1953) was an American astronomer. He profoundly changed our understanding of the universe by demonstrating the existence of other galaxies besides the Milky Way. He also discovered that the degree of redshift observed in light coming from a galaxy increased in proportion to the distance of that galaxy from the Milky Way. This became known as Hubble's law, and would help establish that the universe is expanding. Edwin_Hubble | |
| El Niño-Southern Oscillation El Niño-Southern Oscillation (ENSO; commonly referred to as simply El Niño) is a global coupled ocean-atmosphere phenomenon. The Pacific ocean signatures, El Niño and La Niña are important temperature fluctuations in surface waters of the tropical Eastern Pacific Ocean. El_Niño-Southern_Oscillation | |
| Force See also Force (disambiguation).In physics, a force is a push or pull that can cause an object with mass to change its velocity. Force has both magnitude and direction, making it a vector quantity. Newton's second law states that an object with a constant mass will accelerate in proportion to the net force acting upon and in inverse proportion to its mass. Equivalently, the net force on an object equals the rate at which its momentum changes. See also thrust. Force | |
| Forth (programming language) Forth is a structured, imperative, stack-based, computer programming language and programming environment. Forth is sometimes spelled in all capital letters following the customary usage during its earlier years, although the name is not an acronym.A procedural, stack-oriented and reflective programming language without type checking, Forth features both interactive execution of commands (making it suitable as a shell for systems that lack a more formal operating system) and the ability to compile sequences of commands for later execution. Forth_(programming_language) | |
| Kite kite is a flying tethered aircraft that depends upon the tension of a tethering system. The necessary lift that makes the kite wing fly is generated when air (or in some cases water) flows over and under the kite's wing, producing low pressure above the wing and high pressure below it. Kite | |
| Northrop F-5 Northrop_F-5 | |
| Fire Fire is the oxidation of a combustible material releasing heat, light, and various reaction products such as carbon dioxide and water. If hot enough, the gases may become ionized to produce plasma. Depending on the substances alight, and any impurities outside, the color of the flame and the fire's intensity might vary. Fire in its most common form can result in conflagration, which has the potential to cause physical damage through burning. Fire | |
| Fundamental interaction Talk:Fundamental_interaction | |
| Freeman Dyson Freeman John Dyson FRS (born December 15, 1923) is a British theoretical physicist and mathematician, famous for his work in quantum field theory, solid-state physics, and nuclear engineering. Dyson is a member of the Board of Sponsors of The Bulletin of the Atomic Scientists. Dyson lives in Princeton, New Jersey, where he has been for over fifty years. Freeman_Dyson | |
| Full moon Full moon is a lunar phase that occurs when the Moon is on the opposite side of the Earth from the Sun. More precisely, a full moon occurs when the geocentric apparent (ecliptic) longitudes of the Sun and Moon differ by 180 degrees; the Moon is then in opposition with the Sun. Full_moon | |
| F-15 Eagle F-15_Eagle | |
| F-14 Tomcat F-14_Tomcat | |
| F-4 Phantom II F-4_Phantom_II | |
| F-16 Fighting Falcon F-16_Fighting_Falcon | |
| Global Positioning System Global_Positioning_System | |
| Galileo Galilei Galileo_Galilei | |
| Gemini 10 Gemini 10 (officially Gemini X) was a 1966 manned spaceflight in NASA's Gemini program. It was the 8th manned Gemini flight, the 16th manned American flight and the 24th spaceflight of all time (includes X-15 flights over 100 km). Gemini_10 | |
| Golden ratio In mathematics and the arts, two quantities are in golden ratio if the ratio of the sum of the quantities to the larger one equals the ratio of the larger one to the smaller. The golden ratio is an irrational mathematical constant, approximately 1.6180339887. Golden_ratio | |
| Greenhouse effect greenhouse effect is the heating of the surface of a planet or moon due to the presence of an atmosphere containing gases that absorb and emit infrared radiation. Greenhouse gases, which include water vapor, carbon dioxide and methane, are almost transparent to solar radiation but strongly absorb and emit infrared radiation. Greenhouse_effect | |
| Geographic information system A geographic information system (GIS), or geographical information system, captures, stores, analyzes, manages, and presents data that is linked to location. Technically, GIS is geographic information systems which includes mapping software and its application with remote sensing, land surveying, aerial photography, mathematics, photogrammetry, geography, and tools that can be implemented with GIS software. Geographic_information_system | |
| Global warming/Archive 3 Talk:Global_warming/Archive_3 | |
| Glacier A glacier is a large mass of ice moving slowly over some land surface or down a valley, formed over long periods from the accumulation of snow in areas where the amount of snow that falls exceeds the amount that melts. The word glacier comes from French via the Vulgar Latin glacia, and ultimately from Latin glacies meaning ice. Glacier | |
| Galilean moons The Galilean moons are the four moons of Jupiter discovered by Galileo Galilei on January 7, 1610. They are the largest of the many moons of Jupiter and derive their names from the lovers of Zeus (the Greek equivalent of the Roman god Jupiter)Io, Europa, Ganymede and Callisto. Ganymede, Europa and Io participate in a 1orbital resonance. They are among the most massive objects in the Solar System outside the Sun and the eight planets, with a radius larger than any of the dwarf planets. Galilean_moons | |
| Galaxy A galaxy is a massive, gravitationally bound system that consists of stars and stellar remnants, an interstellar medium of gas and dust, and an important but poorly understood component tentatively dubbed dark matter. The name is from the Greek root galaxias Milky Way galaxy. Galaxy | |
| Gas giant A gas giant (sometimes also known as a Jovian planet after the planet Jupiter, or giant planet) is a large planet that is not primarily composed of rock or other solid matter. There are four gas giants in our Solar System:Jupiter, Saturn, Uranus, and Neptune. Gas_giant | |
| Gegenschein Gegenschein ( German for "counter shine"), is a faint brightening of the night sky in the region of the antisolar point. Gegenschein | |
| Glucose Glucose (Glc), a monosaccharide (or simple sugar) also known as grape sugar, blood sugar, or corn sugar, is a very important carbohydrate in biology. The living cell uses it as a source of energy and metabolic intermediate. Glucose is one of the main products of photosynthesis and starts cellular respiration in both prokaryotes (bacteria and archaea) and eukaryotes (animals, plants, fungi, and protists). Glucose | |
| Glucose Talk:Glucose | |
| Geologic time scale The geologic time scale is a chronologic schema (or idealized model) relating stratigraphy to time that is used by geologists, paleontologists and other earth scientists to describe the timing and relationships between events that have occurred during the history of the Earth. The table of geologic time spans presented here agrees with the dates and Geologic_time_scale | |
| Geyser A geyser is a hot spring characterized by intermittent discharge of water ejected turbulently and accompanied by a vapour phase (steam). The name geyser comes from Geysir, the name of an erupting spring at Haukadalur, Iceland; that name, in turn, comes from the Icelandic verb gjósa, "to gush". Geyser |
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