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Mars Aerial And Ground Global Intelligent Explorer (MAGGIE)
Mars Aerial and Ground Global Intelligent Explorer or MAGGIE is a proposed compact, autonomous, fixed wing, vertical take-off/landing (VTOL), electric aircraft powered by solar energy. It is designed to operate on Mars. Range with a fully charged battery would be at an altitude of 1,000 meters. The aircraft features solar cells on its wings and fuselage. The total range per Martian year would be – more than twice the circumference of Mars. Mars' atmosphere density is 6.35 mbar, 160x thinner than Earth's atmosphere at 1013.2 mbar. During the southern winter, the global atmospheric pressure on Mars is 25% lower than during summer, because some atmospheric freezes on the Martian polar ice caps. MAGGIE has a cruise lift coefficient CL of 3.5, nearly an order of magnitude higher than conventional subsonic aircraft, to overcome the low density of the Martian atmosphere. MAGGIE's cruise Mach number is 0.25. Mach speed on Mars is at "sea level", so cruising speed would be around a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mars Aircraft
A Mars aircraft is a vehicle capable of sustaining powered flight in the atmosphere of Mars. So far, the Mars Helicopter Ingenuity, Mars helicopter ''Ingenuity'' is the only aircraft ever to fly on Mars, completing 72 successful flights covering in 2 hours, 8 minutes and 48 seconds of flight time. ''Ingenuity'' operated on Mars for Sol (day on Mars), sols ( days, total days; '), until it was retired following rotor blade damage. It made the first powered flight on 19 April 2021, taking off from the surface. Previously, the experimental aircraft, NASA Mini-Sniffer, was considered for possible missions to fly in and study Mars' atmosphere, but that idea was abandoned. Aircraft may provide on site measurements of the atmosphere of Mars, as well as additional observations over extended areas. A long-term goal is to develop piloted Mars aircraft. Compared to Earth, the air on Mars is much thinner at the surface, with pressure less than 1% of Earth's at sea level, requiring a more e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Methane
Methane ( , ) is a chemical compound with the chemical formula (one carbon atom bonded to four hydrogen atoms). It is a group-14 hydride, the simplest alkane, and the main constituent of natural gas. The abundance of methane on Earth makes it an economically attractive fuel, although capturing and storing it is difficult because it is a gas at standard temperature and pressure. In the Earth's atmosphere methane is transparent to visible light but absorbs infrared radiation, acting as a greenhouse gas. Methane is an Organic chemistry, organic Organic compound, compound, and among the simplest of organic compounds. Methane is also a hydrocarbon. Naturally occurring methane is found both below ground and under the seafloor and is formed by both geological and biological processes. The largest reservoir of methane is under the seafloor in the form of methane clathrates. When methane reaches the surface and the Atmosphere of Earth, atmosphere, it is known as atmospheric methane. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planetary Atmospheres Of The Solar System
Planetary means relating to a planet or planets. It can also refer to: Science * Planetary habitability, the measure of an astronomical body's potential to develop and sustain life * Planetary nebula, an astronomical object People * Planetary (rapper), one half of east coast rap group OuterSpace Arts, entertainment, and media * ''Planetary'' (comics), a comic book series by Warren Ellis and John Cassaday * "Planetary (Go!)", a 2011 song by rock band My Chemical Romance * ''Planetary Radio'', a public radio show about space exploration, produced by The Planetary Society Organizations * The Planetary Society, the Earth's largest space interest group Technology * Epicyclic gearing An epicyclic gear train (also known as a planetary gearset) is a gear reduction assembly consisting of two gears mounted so that the center of one gear (the "planet") revolves around the center of the other (the "sun"). A carrier connects the ... (planetary gearing), an automotive transmission te ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mars
Mars is the fourth planet from the Sun. It is also known as the "Red Planet", because of its orange-red appearance. Mars is a desert-like rocky planet with a tenuous carbon dioxide () atmosphere. At the average surface level the atmospheric pressure is a few thousandths of Earth's, atmospheric temperature ranges from and cosmic radiation is high. Mars retains some water, in the ground as well as thinly in the atmosphere, forming cirrus clouds, frost, larger polar regions of permafrost and ice caps (with seasonal snow), but no liquid surface water. Its surface gravity is roughly a third of Earth's or double that of the Moon. It is half as wide as Earth or twice the Moon, with a diameter of , and has a surface area the size of all the dry land of Earth. Fine dust is prevalent across the surface and the atmosphere, being picked up and spread at the low Martian gravity even by the weak wind of the tenuous atmosphere. The terrain of Mars roughly follows a north-south ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mars Piloted Orbital Station
Mars Piloted Orbital Station (or Marspost) is a Russian concept for an orbital human mission to Mars, with several proposed configurations, including using a nuclear reactor to run an electric rocket engine. A 30-volume draft proposal was produced in 2005. The design for the proposed ship was proposed to be ready in 2012, and the ship itself in 2021. The concept did not undergo detailed design nor development. Mission scenario Marpost would be launched to Mars together with a fleet of robotic spacecraft designed to study the planet both from its orbit and on its surface, while the crew would remain in Mars orbit. The station would reach Mars orbit from where its crew would research Mars by operating the robots; for this reason the mission is called a 'hybrid'. Since the robots would be controlled by Marpost crewmembers from Martian orbit it would eliminate one of the basic problems of robotic Mars missions, the 4 to 24 minute delay for radio signals to reach the Earth. Samples of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solar-powered Aircraft
Solar-powered aircraft are electric aircraft that can be an airplane, blimp, or airship and use either a battery or hydrogen to store the energy produced by the solar cells and use that energy at night when the sun isn't shining. Usage Solar-powered aircraft do not require fuel, so they don't require oxygen, and they are able to operate at altitudes over to for months at a time. Conventional passenger or cargo aircraft usages aren't practical yet with modern technology, but high-altitude platform stations and long-endurance missions over a fixed location with unmanned aircraft or airships are feasible. Thus solar-powered aircraft could be used in telecommunications, video/imagery, flight control by transporting airport surveillance radars, in precipitation detection by transporting weather radars, geopositioning Global Positioning Systems (GPS), and other pseudo satellite applications that transpond the data with ground stations. List of solar airplanes This list is non ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Google Earth
Google Earth is a web mapping, web and computer program created by Google that renders a 3D computer graphics, 3D representation of Earth based primarily on satellite imagery. The program maps the Earth by superimposition, superimposing satellite images, aerial photography, and geographic information system, GIS data onto a 3D globe, allowing users to see cities and landscapes from various angles. Users can explore the globe by entering addresses and coordinates, or by using a Computer keyboard, keyboard or computer mouse, mouse. The program can also be downloaded on a smartphone or Tablet computer, tablet, using a touch screen or stylus to navigate. Users may use the program to add their own data using Keyhole Markup Language and upload them through various sources, such as forums or blogs. Google Earth is able to show various kinds of images overlaid on the surface of the Earth and is also a Web Map Service client. In 2019, Google revealed that Google Earth covers more than 97 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ingenuity (helicopter)
''Ingenuity'', nicknamed ''Ginny'', is an autonomous NASA helicopter that operated on Mars from 2021 to 2024 as part of the Mars 2020 mission. ''Ingenuity'' made its first flight on 19 April 2021, demonstrating that flight is possible in the extremely thin atmosphere of Mars, and becoming the first aircraft to conduct a powered and controlled extra-terrestrial flight. It was designed by NASA's Jet Propulsion Laboratory (JPL) in collaboration with AeroVironment, NASA's Ames Research Center and Langley Research Center with some components supplied by Lockheed Martin Space, Qualcomm, and Rocket Lab, SolAero. ''Ingenuity'' was delivered to Mars on 18 February 2021, attached to the underside of the Perseverance (rover), ''Perseverance'' rover, which landed at Octavia E. Butler Landing near the western rim of the Jezero (crater), Jezero crater. Because radio signals take between five and 20 minutes to travel between Earth and Mars, depending on the planets' positions, it could not ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Exploration Geophysics
Exploration geophysics is an applied branch of geophysics and economic geology, which uses physical methods at the surface of the Earth, such as seismic, gravitational, magnetic, electrical and electromagnetic, to measure the physical properties of the subsurface, along with the anomalies in those properties. It is most often used to detect or infer the presence and position of economically useful geological deposits, such as ore minerals; fossil fuels and other hydrocarbons; Geothermal energy, geothermal reservoirs; and groundwater reservoirs. It can also be used to detect the presence of unexploded ordnance. Exploration geophysics can be used to directly detect the target style of mineralization by measuring its physical properties directly. For example, one may measure the density contrasts between the dense iron ore and the lighter silicate host rock, or one may measure the electrical conductivity contrast between conductive sulfide minerals and the resistive silicate host roc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Exploration Of Mars
The planet Mars has been explored remotely by spacecraft. Uncrewed spacecraft, Probes sent from Earth, beginning in the late 20th century, have yielded a large increase in knowledge about the Martian system, focused primarily on understanding Geology of Mars, its geology and Planetary habitability, habitability potential. Engineering Interplanetary spaceflight, interplanetary journeys is complicated and the exploration of Mars has experienced a high failure rate, especially the early attempts. Roughly sixty percent of all spacecraft destined for Mars failed before completing their missions, with some failing before their observations could begin. Some missions have been met with unexpected success, such as the twin Mars Exploration Rovers, ''Spirit (rover), Spirit'' and ''Opportunity (rover), Opportunity'', which operated for years beyond their specification. Current status There are two functional rovers on the surface of Mars, the Curiosity (rover), ''Curiosity'' and Persever ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aerobot
An aerobot is an aerial robot, usually used in the context of an uncrewed space probe or unmanned aerial vehicle. While work has been done since the 1960s on robot " rovers" to explore the Moon and other worlds in the Solar System, such machines have limitations. They tend to be expensive and have limited range, and due to the communications time lags over interplanetary distances, they have to be smart enough to navigate without disabling themselves. For planets with atmospheres of any substance, however, there is an alternative: an autonomous flying robot, or "aerobot".Anthony Colozza, Geoffrey Landis, and Valerie Lyons, ''Overview of Innovative Aircraft Power and Propulsion Systems and Their Applications for Planetary Exploration,'' NASA TM-2003-212459 (July 2003link to NASA TM Most aerobot concepts are based on aerostats, primarily balloons, but occasionally airships. Flying above obstructions in the winds, a balloon could explore large regions of a planet in detail for rela ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water On Mars
Although very small amounts of liquid water may occur transiently on the surface of Mars, limited to traces of dissolved moisture from the atmosphere and thin films, large quantities of ice are present on and under the surface. Small amounts of water vapor are present in the atmosphere, and liquid water may be present under the surface. In addition, a large quantity of liquid water was likely present on the surface in the distant past. Currently, ice is mostly present in polar permafrost. More than 5 million km3 of ice have been detected at or near the surface of Mars, enough to cover the planet to a depth of . Even more ice might be locked away in the deep subsurface.Carr, 2006, p. 173. The chemical signature of water vapor on Mars was first unequivocally demonstrated in 1963 by spectroscopy using an Earth-based telescope. In 2008 and 2013, ice was detected in soil samples taken by the Phoenix lander and ''Curiosity'' rover. In 2018, radar findings suggested the pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
