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English Wikipedia references for Nasa.gov 401-450 of 26570
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| American Airlines Flight 587 American Airlines Flight 587, an Airbus A300, crashed into the Belle Harbor neighborhood of Queens; a borough of New York City in New York, United States, shortly after takeoff from John F. Kennedy International Airport on November 12, 2001. This is the second deadliest U.S. American_Airlines_Flight_587 | |
| 1 gigametre 9 metres (1 gigametre (Gm) or 1 million kilometres).Distances shorter than 109 metres 1.4 Gm Sun 1.5 Gm James Webb Space Telescope 2.19 Gm Comet Lexell to Earth, happened on July 1, 1770; closest comet approach on record 4.2 Gm Algol B 5.0 Gm Comet Halley to Earth, happened on April 10, 837 5.0 Gm 1_gigametre | |
| 1 myriametre To help compare different orders of magnitude this page lists lengths between 10 and 100 kilometres (104 to 105 metres).Distances shorter than 10 kilometres 1_myriametre | |
| 2009 2009 (MMIX) is the current year of the Anno Domini/Common Era in accordance with the Gregorian calendar. It is a common year starting on Thursday and the last year of the 2000s decade.2009 has been designated as the International Year of Astronomy. International Year of Natural Fibres. 2009 | |
| 22nd century The 22nd century of the Anno Domini era will span the years 2101–2200 of the Gregorian calendar. 22nd_century | |
| 61 Cygni 61_Cygni | |
| 2011 2011 (MMXI) will be a common year starting on Saturday of the Gregorian calendar. According to the North Korean Juche calendar, this will be Juche year 100. This year will also be the 100th of the Republic of China (Taiwan) Era year (民國100年). 2011 | |
| 2020s The 2020s is the 3rd decade of the 21st century of the Anno Domini (common) era. It will begin on January 1, 2020 and end on December 31, 2029.By the end of the decade, world population is projected to surpass 8 billion people. 2020s | |
| Gus Grissom Virgil Ivan Grissom, more widely known as Gus Grissom, (April 3, 1926 – January 27, 1967) was one of the original NASA Project Mercury astronauts and a United States Air Force pilot. He was the second American to fly in space. Grissom was killed along with fellow astronauts Ed White and Roger Chaffee during a training exercise and pre-launch test for the Apollo 1 mission at the Kennedy Space Center. Gus_Grissom | |
| Edward Higgins White Edward Higgins White, II (Lt.Col , USAF) (November 14, 1930United States Air Force officer and a NASA astronaut. On June 3 1965, he became the first American to conduct a spacewalk. White was killed during the Apollo 1 training accident and posthumously awarded the Congressional Space Medal of Honor and was previously awarded the NASA Space Flight Medal for his Gemini 4 spaceflight. Edward_Higgins_White | |
| Roger B. Chaffee Roger Bruce Chaffee (February 15, 1935 – January 27, 1967) was a Lieutenant Commander in the U.S. Navy and a NASA astronaut in the Apollo program. Chaffee was killed during the Apollo 1 training exercise tragedy, along with fellow astronauts Gus Grissom and Ed White. He was posthumously awarded the Congressional Space Medal of Honor, the Purple Heart and the United States Navy Air Medal. Roger_B._Chaffee | |
| Mount St. Helens Mount St. Helens is an active stratovolcano located in Skamania County, Washington, in the Pacific Northwest region of the United States. It is south of Seattle and northeast of Portland, Oregon. Mount St. Helens takes its English name from the British diplomat Lord St Helens, a friend of explorer George Vancouver who made a survey of the area in the late 18th century. Mount_St._Helens | |
| Buran program The Soviet reusable spacecraft program Buran ("Бура́н" meaning "Snowstorm" or "Blizzard" in Russian) began in 1974 at TsAGI as a response to the United States Space Shuttle program. The project was the largest and the most expensive in the history of Soviet space exploration. The Buran completed one unmanned spaceflight in 1988 before its cancellation in 1993. Buran spacecraft was similar in appearance to the NASA Space Shuttle, and was destroyed in the Buran hangar collapse on May 12, 2002. Buran_program | |
| Little Ice Age Little Ice Age (LIA) was a period of cooling occurring after a warmer North Atlantic era known as the Medieval Warm Period. While not a true ice age, the term was introduced into scientific literature by François E. Matthes in 1939. Climatologists and historians working with local records no longer expect to agree on either the start or end dates of this period, which varied according to local conditions. Little_Ice_Age | |
| Medieval Warm Period Medieval Warm Period (MWP) or Medieval Climate Optimum was a time of warm climate in the North Atlantic region, lasting from about the tenth century to about the fourteenth century. It was followed by a cooler period in the North Atlantic termed as the Little Ice Age. The MWP is often invoked in discussions of global warming. Some refer to the event as the Medieval Climatic Anomaly as this term emphasizes that effects other than temperature were important. Medieval_Warm_Period | |
| Arabidopsis thaliana Arabidopsis_thaliana | |
| RQ-3 DarkStar RQ-3_DarkStar | |
| RQ-4 Global Hawk RQ-4_Global_Hawk | |
| Astrid Lindgren Astrid Anna Emilia Lindgren (née) Ericsson (Swedish author and screenwriter, whose many works were translated into 85 languages and published in more than 100 countries. She has sold roughly 145 million copies worldwide. Today, she is best remembered for writing the Pippi Longstocking and Karlsson-on-the-Roof book series. Astrid_Lindgren | |
| Mariner 9 Mariner 9 (Mariner Mars '71 / Mariner-I) was a NASA space probe orbiter that helped in the exploration of Mars and was part of the Mariner program. Mariner 9 was launched toward Mars on May 30, 1971 from Cape Canaveral Air Force Station and reached the planet on November 13 of the same year, becoming the first spacecraft to orbit another planet — only narrowly beating Soviet Mars 2 and Mars 3, which both arrived within a month. Mariner_9 | |
| Shaped charge Shaped_charge | |
| 433 Eros 433_Eros | |
| NEAR Shoemaker NEAR_Shoemaker | |
| Soil As defined by J.S. Joffe in 1949, Soil is a natural body consisting of layers (horizons) of mineral constituents of variable thicknesses, which differ from the parent materials in their morphological, physical, chemical, and mineralogical characteristics. In engineering, soil is referred to as regolith, or loose rock material. Soil | |
| Edward Teller Edward Teller (original Hungarian name Teller Ede) (January 15, 1908 September 9, 2003) was a Hungarian-American theoretical physicist, known colloquially as "the father of the hydrogen bomb", even though he claimed that he did not care for the title.Teller is best known for his work on the American nuclear program, specifically as a member of the Manhattan Project during World War II, his role in the development of the hydrogen bomb, and his long association with Lawrence Livermore National Laboratory (which he co-founded and served as a director). Edward_Teller | |
| Solid-fuel rocket A solid rocket or a solid-fuel rocket is a rocket with a motor that uses solid propellants (fuel/oxidizer). The earliest rockets were solid fueled, powered by gunpowder, used by the Chinese and Arabs in warfare as early as the 13th century. All rockets used some form of solid or powdered propellant up until the 20th century, when liquid rockets and hybrid rockets offered more efficient and controllable alternatives. Solid-fuel_rocket | |
| Hybrid rocket A hybrid rocket is a rocket with a rocket engine which uses propellants in two different states of matter - one solid and the other either gas or liquid. Hybrid rockets are not a new concept but were conceived at least 75 years ago.Hybrid rockets exhibit advantages over both liquid rockets and solid rockets especially in terms of simplicity, safety, and cost. Hybrid_rocket | |
| Hall effect thruster In spacecraft propulsion, a Hall thruster is a type of ion thruster in which the propellant is accelerated by an electric field. Hall thrusters trap electrons in a magnetic field and then use the electrons to ionize propellant, efficiently accelerate the ions to produce thrust, and neutralize the ions in the plume. Hall thrusters are sometimes referred to as Hall Effect Thrusters or Hall Current Thrusters. Hall_effect_thruster | |
| Ion thruster An ion thruster is a form of electric propulsion used for spacecraft propulsion that creates thrust by accelerating ions. Ion thrusters are categorized by how they accelerate the ions, using either electrostatic or electromagnetic force. Electrostatic ion thrusters use the Coulomb Force and accelerate the ions in the direction of the electric field. Ion_thruster | |
| Pulsed plasma thruster Pulsed_plasma_thruster | |
| Nuclear thermal rocket nuclear thermal rocket a working fluid, usually hydrogen, is heated to a high temperature in a nuclear reactor, and then expands through a rocket nozzle to create thrust. The nuclear reactor's energy replaces the chemical energy of the reactive chemicals in a traditional rocket engine. Nuclear_thermal_rocket | |
| Alcubierre drive The Alcubierre metric, also known as the Alcubierre drive or Warp Drive, is a speculative mathematical model of a spacetime exhibiting features reminiscent of the fictional "warp drive" from Star Trek, which can travel "Faster-than-light" (although not in a local sense - see below).In 1994, the Mexican physicist Miguel Alcubierre proposed a method of stretching space in a wave which would in theory cause the fabric of space ahead of a spacecraft to contract and the space behind it to expand. Alcubierre_drive | |
| Spacecraft A spacecraft is a craft or machine designed for spaceflight. On a sub-orbital spaceflight, a spacecraft enters space then returns to the Earth. For an orbital spaceflight, a spacecraft enters a closed orbit around the planetary body. Spacecraft used for human spaceflight carry people on board as crew or passengers. Spacecraft | |
| UH-60 Black Hawk UH-60_Black_Hawk | |
| CH-47 Chinook CH-47_Chinook | |
| Julian day The Julian date (JD) is the interval of time in days and fractions of a day, since January 1, 4713 BC Greenwich noon, Julian proleptic calendar. In precise work, the timescale, e.g., Terrestrial Time (TT) or Universal Time (UT), should be specified.The Julian day number (JDN) is the integral part of the Julian date (JD). Negative values can also be used, although those predate all recorded history. Now, at the Julian day number is . Julian_day | |
| Viking program NASA's Viking program consisted of a pair of space probes sent to Mars, Viking 1 and Viking 2. Each vehicle was composed of two main parts, an orbiter designed to photograph the surface of Mars from orbit, and a lander designed to study the planet from the surface. Viking_program | |
| Hot air balloon hot air balloon is the oldest successful human-carrying flight technology. On November 21, 1783, in Paris, France, the first manned flight was made by Jean-François Pilâtre de Rozier and François Laurent d'Arlandes in a hot air balloon created by the Montgolfier brothers. Hot_air_balloon | |
| Pioneer 10 Pioneer 10 (also called Pioneer F) was the first spacecraft to travel through the asteroid belt, which it entered on July 15, 1972, and to make direct observations of Jupiter, which it passed by on December 3, 1973. It was launched from Cape Canaveral Air Force Station's Launch Complex 36A on March 3, 1972 at 01UTC. Pioneer_10 | |
| Wind tunnel A wind tunnel is a research tool used in aerodynamic research. It is used to study the effects of air moving past solid objects. Wind_tunnel | |
| Inflation In economics, inflation is a rise in the general level of prices of goods and services in an economy over a period of time. purchasing power in the internal medium of exchange which is also the monetary unit of account in an economy. A chief measure of general price-level inflation is the general inflation rate, which is the percentage change in a general price index (normally the Consumer Price Index) over time. Inflation | |
| Gravitational constant The gravitational constant, denoted G, is an empirical physical constant involved in the calculation of the gravitational attraction between objects with mass. It appears in Newton's law of universal gravitation and in Einstein's theory of general relativity. Gravitational_constant | |
| Space Shuttle program NASA's Space Shuttle, officially called Space Transportation System (STS), is the United States government's current manned launch vehicle and is scheduled to be retired from service in 2010. The winged Space Shuttle orbiter is launched vertically, usually carrying five to seven astronauts (although eight have been carried) and up to 50,000lb (22kg) of payload into low earth orbit. Space_Shuttle_program | |
| Cape Cod Cape Cod, often referred to as simply the Cape, is a peninsula in the easternmost portion of the state of Massachusetts, in the Northeastern United States. It is coextensive with Barnstable County. Several smaller islands off Cape Cod, including Monomoy Island, Monomoscoy Island, Popponesset Island, and Seconsett Island, are also in Barnstable County, being part of municipalities with land on the Cape. The Cape's small-town character and large beachfront attract heavy tourism during the summer months. Cape_Cod | |
| Mariner 2 Mariner 2 (Mariner-Venus 1962), a space probe to Venus, was the first successful spacecraft in the NASA Mariner program. It was a simplified version of the Block I spacecraft of the Ranger program and an exact copy of Mariner 1. The missions of Mariner 1 and 2 spacecraft are together sometimes known as the Mariner R missions. Mariner 2 passed within of Venus on December 14, 1962, becoming the first space probe to conduct a successful planetary encounter. Mariner_2 | |
| Mariner 6 and 7 As part of the wider Mariner program, in 1969 Mariner 6 and Mariner 7 (Mariner Mars 69A / 69B) completed the first dual mission to Mars, flying over the equator and south polar regions and analysing atmosphere and surface with remote sensors as well as recording and relaying hundreds of pictures. Mariner_6_and_7 | |
| Mariner 10 Mariner 10 was a robotic space probe launched on November 3, 1973 to fly by the planets Mercury and Venus. It was launched approximately 2 years after Mariner 9 and was the last spacecraft in the Mariner program (Mariner 11 and 12 were purposed to the Voyager program and redesignated Voyager 1 and Voyager 2). Mariner_10 | |
| Mariner 1 Mariner 1 was the first spacecraft of the Mariner program. Launched on July 22, 1962 as a Venus flyby mission, a range safety officer ordered its destructive abort at 09 The booster had performed satisfactorily until an unscheduled yaw-lift (northeast) maneuver was detected by the range safety officer. Mariner_1 | |
| Mariner 3 Mariner 3 and 4 were identical spacecraft of the Mariner program designed to carry out the first flybys of Mars and obtain photographs of the planet's surface. Mariner 3 was launched on November 5, 1964 from Cape Canaveral Air Force Station Launch Complex 13, but the shroud encasing the spacecraft atop its rocket failed to open properly, and Mariner 3 did not get to Mars. Mariner_3 | |
| Mariner 5 Mariner 5 (Mariner Venus '67) was a spacecraft of the Mariner program that carried a complement of experiments to probe Venus' atmosphere by radio occultation, measure the hydrogen Lyman-alpha (hard ultraviolet) spectrum, and sample the solar particles and magnetic field fluctuations above the planet. Its goals were to measure interplanetary and Venusian magnetic fields, charged particles, plasmas, radio refractivity and UV emissions of the Venusian atmosphere. Mariner_5 |
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