DomainTools.com |
 |
||
|
|
||
English Wikipedia references for Nasa.gov 201-250 of 26570
<< | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | >>
| Language: | ||||||||||||
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
|
| Articles: | 26,570 |
5,687 |
3,101 |
1,753 |
15,218 |
3,374 |
629 |
16,432 |
20,687 |
980 |
1,025 |
1,022 |
| Lysithea (moon) Lysithea_(moon) | |
| Leap second Leap_second | |
| Lake Nicaragua Lake Nicaragua or Cocibolca or Granada (, Lago Cocibolca, Mar Dulce, Gran Lago, Gran Lago Dulce, or Lago de Granada) is a vast freshwater lake in Nicaragua of tectonic origin. With an area of , it is the largest lake in Central America, the 21st largest lake in the world (by area) and only slightly smaller than Lake Titicaca. With an elevation of above sea level, the lake reaches a depth of . It is intermittently joined by the Tipitapa River to Lake Managua. Lake_Nicaragua | |
| Laika Laika (from the , a breed of dog, literally meaning "Barker" or "Howler") was a Soviet space dog (c. 1954–November 3, 1957) who became the first living mammal to orbit the Earth and the first orbital casualty. Little was known about the impact of space flight on living things at the time Laika's mission was launched. Laika | |
| Human spaceflight human spaceflight is a spaceflight with a human crew, and possibly passengers. This makes it unlike robotic space probes or remotely-controlled satellites. Human spaceflight is sometimes called manned spaceflight, a term now deprecated by major space agencies in favor of its gender-neutral alternative.As of 2008 human spaceflights are being actively launched by the Soyuz programme conducted by the Russian Federal Space Agency, the Space Shuttle program conducted by NASA and the Shenzhou program conducted by the China National Space Administration. Human_spaceflight | |
| 2001 Mars Odyssey 2001 Mars Odyssey is a robotic spacecraft orbiting the planet Mars. Its mission is to use spectrometers and imagers to hunt for evidence of past or present water and volcanic activity on Mars. It is hoped that the data Odyssey obtains will help answer the question of whether life has ever existed on Mars. 2001_Mars_Odyssey | |
| Mass Mass is a concept used in the physical sciences to explain a number of observable behaviors, and in everyday usage, it is common to identify mass with those resulting behaviors. In particular, mass is commonly identified with weight. But according to our modern scientific understanding, the weight of an object results from the interaction of its mass with a gravitational field, so while mass is part of the explanation of weight, it is not the complete explanation. Mass | |
| Moon Moon | |
| Main sequence The main sequence is a continuous and distinctive band of stars that appear on plots of stellar color versus brightness. These color-magnitude plots are known as Hertzsprung-Russell diagrams after their co-developers, Ejnar Hertzsprung and Henry Norris Russell. Stars on this band are known as main-sequence stars or "dwarf" stars. After a star has formed, it creates energy at the hot, dense core region through the nuclear fusion of hydrogen atoms into helium Main_sequence | |
| Michael Palin Michael Edward Palin, CBE (born 5 May 1943) is an English comedian, actor, writer and television presenter best known for being one of the members of the comedy group Monty Python and for his travel documentaries.Palin wrote most of his material with Terry Jones. Michael_Palin | |
| Mercury (planet) Mercury_(planet) | |
| Moon/Archive 6 Talk:Moon/Archive_6 | |
| Project Mercury Project_Mercury | |
| Montreal Protocol For other similarly-named agreements, see Montreal Convention (disambiguation).The Montreal Protocol on Substances That Deplete the Ozone Layer is an international treaty designed to protect the ozone layer by phasing out the production of a number of substances believed to be responsible for ozone depletion. Montreal_Protocol | |
| Meteorology Meteorology (from Greek , metéōros, "high in the sky"; and , -logia) is the interdisciplinary scientific study of the atmosphere that focuses on weather processes and forecasting (in contrast with climatology). Studies in the field stretch back millennia, though significant progress in meteorology did not occur until the eighteenth century. Meteorology | |
| Meteorite meteorite is a natural object originating in outer space that survives an impact with the Earth's surface. While in space it is called a meteoroid. When it enters the atmosphere, impact pressure causes the body to heat up and emit light, thus forming a fireball, also known as a meteor or shooting star. The term bolide refers to either an extraterrestrial body that collides with the Earth, or to an exceptionally bright, fireball-like meteor regardless of whether it ultimately impacts the surface. Meteorite | |
| Mach number Mach number ( or ) (generally , sometimes or ) is the speed of an object moving through air, or any fluid substance, divided by the speed of sound as it is in that substance. It is commonly used to represent an object's (such as an aircraft or missile) speed, when it is travelling at (or at multiples of) the speed of sound. where is the Mach number is the speed of the source (the object relative to the medium) and is the speed of sound in the medium Mach_number | |
| Muon The muon (from the Greek letter mu (μ) used to represent it) is an elementary particle similar to the electron, with negative electric charge and a spin of . Together with the electron, the tauon, and the three neutrinos, it is classified as a lepton. It is the unstable subatomic particle with the second longest mean lifetime (), behind the neutron (~). Muon | |
| Mariner 4 Mariner 4 (together with Mariner 3 known as Mariner-Mars 1964) was the fourth in a series of spacecraft, launched on November 28, 1964, intended for planetary exploration in a flyby mode and performed the first successful flyby of the planet Mars, returning the first pictures of the Martian surface. Mariner_4 | |
| Miranda (moon) Miranda () is the smallest and innermost of Uranus' five major moons.It was discovered by Gerard Kuiper on 1948-02-16 at McDonald Observatory. It was named after Miranda from William Shakespeare's play The Tempest by Kuiper in his report of the discovery. The adjectival form of the name is Mirandan. It is also designated Uranus. Miranda_(moon) | |
| Microorganism microorganism (from the , mikrós, "small" and , organismós, "organism"; also spelled micro organism or micro-organism) or microbe is an organism that is microscopic (usually too small to be seen by the naked human eye). The study of microorganisms is called microbiology, a subject that began with Anton van Leeuwenhoek's discovery of microorganisms in 1675, using a microscope of his own design. Microorganism | |
| Lunar phase Lunar phase (or Moon phase) refers to the appearance of the illuminated portion of the Moon as seen by an observer, usually on Earth. The lunar phases vary cyclically as the Moon orbits the Earth, according to the changing relative positions of the Earth, Moon, and Sun. Lunar_phase | |
| Magnetosphere astronomical object. Earth is surrounded by a magnetosphere, as are the magnetized planets Mercury, Jupiter, Saturn, Uranus, and Neptune. Jupiter's moon Ganymede is magnetized, but too weak to trap solar wind plasma. Mars has patchy surface magnetization. The term magnetosphere has also been used to describe regions dominated by the magnetic fields of celestial objects, e.g. pulsar magnetospheres. Magnetosphere | |
| Messerschmitt Me 262 Messerschmitt_Me_262 | |
| Motion (physics) In physics, motion means a change in the location of a body. Change in motion is the result of applied force. Motion is typically described in terms of velocity, acceleration, displacement, and time. An object's velocity cannot change unless it is acted upon by a force, as described by Newton's first law also known as Inertia. Motion_(physics) | |
| Marathi language Marathi_language | |
| My Neighbor Totoro , is a 1988 Japanese anime film written and directed by Hayao Miyazaki and produced by Studio Ghibli. The film follows the two young daughters of a professor and their interactions with friendly wood spirits in postwar rural Japan. The movie won the Animage Anime Grand Prix prize in 1988. The movie was originally released in the U.S. in VHS format with the title, My Friend Totoro. My_Neighbor_Totoro | |
| Mira Mira | |
| Neil Armstrong Neil Alden Armstrong (born August 5, 1930) is an American aviator and a former astronaut, test pilot, university professor, and United States Naval Aviator. He was the first person to set foot on the Moon. His first spaceflight was aboard Gemini 8 in 1966, for which he was the command pilot. Neil_Armstrong | |
| Neutron Neutron | |
| Neon Neon () is the chemical element that has the symbol Ne and atomic number 10. Although a very common element in the universe, it is rare on Earth. A colourless, inert noble gas under standard conditions, neon gives a distinct reddish-orange glow when used in discharge tubes and neon lamps. It is commercially extracted from air, in which it is found in trace amounts. Neon | |
| Norwegian Sea Norwegian_Sea | |
| NetBSD NetBSD is a freely redistributable, open source version of the Unix-derivative Berkeley Software Distribution (BSD) computer operating system. It was the second open source BSD descendant to be formally released, after 386BSD, and continues to be actively developed. Noted for its portability and quality of design and implementation, it is often used in embedded systems and as a starting point for the porting of other operating systems to new computer architectures. NetBSD | |
| Nuclear fusion nuclear physics and nuclear chemistry, nuclear fusion is the process by which multiple like-charged atomic nuclei join together to form a heavier nucleus. It is accompanied by the release or absorption of energy, which allows matter to enter a plasma state.The fusion of two nuclei with lower mass than iron (which, along with nickel, has the largest binding energy per nucleon) generally releases energy while the fusion of nuclei heavier than iron absorbs energy; vice-versa for the reverse process, nuclear fission. Nuclear_fusion | |
| Nereid (moon) Nereid_(moon) | |
| Near-Earth object A near-Earth object (NEO) is a Solar System object whose orbit brings it into close proximity with the Earth. perihelion distance < 1.3 AU . They include a few thousand near-Earth asteroids (NEAs), near-Earth comets, a number of solar-orbiting spacecraft, and meteoroids large enough to be tracked in space before striking the Earth. Near-Earth_object | |
| Nature Nature, in the broadest sense, is equivalent to the natural world, physical world or material world. "Nature" refers to the phenomena of the physical world, and also to life in general. It ranges in scale from the subatomic to the cosmic. The word nature is derived from the Latin word natura, or "essential qualities, innate disposition," but literally meaning "birth." Natura was a Latin translation of the Greek word physis (φύσις), which originally related Nature | |
| New moon In astronomical terminology, the phrase new moon is the lunar phase that occurs when the Moon, in its monthly orbital motion around Earth, lies between Earth and the Sun, and is therefore in conjunction with the Sun as seen from Earth. At this time, the dark (unilluminated) portion of the Moon faces almost directly toward Earth, so that the Moon is not visible to the naked eye. New_moon | |
| North Pole The North Pole, also known as the Geographic North Pole or Terrestrial North Pole is, subject to the caveats explained below, defined as the point in the northern hemisphere where the Earth's axis of rotation meets the Earth's surface. It should not be confused with the North Magnetic Pole. North_Pole | |
| Neutron star A neutron star is a type of remnant that can result from the gravitational collapse of a massive star during a Type II, Type Ib or Type Ic supernova event. Such stars are composed almost entirely of neutrons, which are subatomic particles without electrical charge and roughly the same mass as protons. Neutron_star | |
| Naiad (moon) Naiad_(moon) | |
| Nuclear winter Nuclear winter is a term that describes the predicted climatic effects of nuclear war. Severely cold weather and reduced sunlight for a period of months or years would be caused by detonating large numbers of nuclear weapons, especially over flammable targets such as cities, where large amounts of smoke and soot would be injected into the Earth's stratosphere. Nuclear_winter | |
| Oxygen Oxygen (, from the Greek roots ὀξύς (oxys) (acid, literally "sharp," from the taste of acids) and -γενής (-genēs) (producer, literally begetter) is the element with atomic number 8 and represented by the symbol O. It is a member of the chalcogen group on the periodic table, and is a highly reactive nonmetallic period 2 element that readily forms compounds (notably oxides) with almost all other elements. Oxygen | |
| Osmium Osmium () is a chemical element that has the symbol Os and atomic number 76. Osmium is a hard, brittle, blue-gray or blue-black transition metal in the platinum family, and is the densest natural element. The density of osmium is , slightly larger than the density of iridium, the second densest element. Osmium | |
| Oort cloud The Oort cloud ( ort, alternatively the Öpik-Oort Cloud ) is a hypothetical spherical cloud of comets which may lie roughly 50,000 AU, or nearly a light-year, from the Sun. This places the cloud at nearly a quarter of the distance to Proxima Centauri, the nearest star to the Sun. Oort_cloud | |
| Oxygen Talk:Oxygen | |
| Ophiuchus Ophiuchus ( Óphiúchus, genitive Ophiuchi ; Greek Ὀφιοῦχος) is a large constellation located around the celestial equator. Its name is Greek for 'snake-holder', and it is commonly represented as a man grasping the snake that is represented by the constellation Serpens. Ophiuchus | |
| Ozone Ozone or trioxygen (O3) is a triatomic molecule, consisting of three oxygen atoms. It is an allotrope of oxygen that is much less stable than the diatomic O2. Ground-level ozone is an air pollutant with harmful effects on the respiratory systems of animals. The ozone layer in the upper atmosphere filters potentially damaging ultraviolet light from reaching the Earth's surface. It is present in low concentrations throughout the Earth's atmosphere. It has many industrial and consumer applications. Ozone | |
| Olympus Mons Olympus Mons (Latin for "Mount Olympus") is the tallest known volcano and mountain in the Solar System and was formed during amazonian epoch. It is located on the planet Mars at approximately 18°N 133°W / 18, -133. It is three times taller than Mount Everest. Since the late 19th century — well before space probes confirmed its identity as a mountain — Olympus Mons was known to astronomers as the albedo feature, Nix Olympica ("Snows of Olympus"), although its mountainous nature was suspected. Olympus_Mons | |
| Ozone layer ozone layer is a layer in Earth's atmosphere which contains relatively high concentrations of ozone (O3). This layer absorbs 93-99% of the sun's high frequency ultraviolet light, which is potentially damaging to life on earth. Over 91% of the ozone in Earth's atmosphere is present here. Ozone_layer |
<< | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | >>
