The Hill is a top US political website, read by the White House and more lawmakers than any other site vital for policy, politics and election campaigns. Query and order satellite images, aerial photographs, and cartographic products through the U. S. Geological Survey. New International Version Now the earth was formless and empty, darkness was over the surface of the deep, and the Spirit of God was hovering over the waters. Heroes Of Might And Magic Iv Dragon Ring 2005 Pc. Mars Wikipedia. Mars is the fourth planet from the Sun and the second smallest planet in the Solar System after Mercury. In English, Mars carries a name of the Roman god of war, and is often referred to as the Red Planet1. Mars is a terrestrial planet with a thin atmosphere, having surface features reminiscent both of the impact craters of the Moon and the valleys, deserts, and polar ice caps of Earth. The rotational period and seasonal cycles of Mars are likewise similar to those of Earth, as is the tilt that produces the seasons. Mars is the site of Olympus Mons, the largest volcano and second highest known mountain in the Solar System, and of Valles Marineris, one of the largest canyons in the Solar System. The smooth Borealis basin in the northern hemisphere covers 4. Mars has two moons, Phobos and Deimos, which are small and irregularly shaped. These may be captured asteroids,1. DEGs-3LujFk/hqdefault.jpg' alt='Dem Earth 2' title='Dem Earth 2' />William close the earth harp collective. State of Rhode Island Department of Environmental Management. A remake of the 1951 classic science fiction film about an alien visitor and his giant robot counterpart who visit Earth. Google Earth for mobile enables you to explore the globe with a swipe of your finger. Fly through 3D cities like London, Tokyo and Rome. Dive in to view the world at. Eureka, a Mars trojan. There are ongoing investigations assessing the past habitability potential of Mars, as well as the possibility of extant life. Future astrobiology missions are planned, including the Mars 2. Exo. Mars rovers. Liquid water cannot exist on the surface of Mars due to low atmospheric pressure, which is less than 1 of the Earths,2. The two polar ice caps appear to be made largely of water. The volume of water ice in the south polar ice cap, if melted, would be sufficient to cover the entire planetary surface to a depth of 1. In November 2. 01. NASA reported finding a large amount of underground ice in the Utopia Planitia region of Mars. The volume of water detected has been estimated to be equivalent to the volume of water in Lake Superior. Mars can easily be seen from Earth with the naked eye, as can its reddish coloring. Its apparent magnitude reaches 2. Jupiter, Venus, the Moon, and the Sun. Optical ground based telescopes are typically limited to resolving features about 3. Earth and Mars are closest because of Earths atmosphere. Physical characteristics. Mars is approximately half the diameter of Earth with a surface area only slightly less than the total area of Earths dry land. Mars is less dense than Earth, having about 1. Earths volume and 1. Earths mass, resulting in about 3. Earths surface gravity. The red orange appearance of the Martian surface is caused by ironIII oxide, or rust. It can look like butterscotch 3. Verb Forms List With Gujarati Meaning Pdf. Internal structure. Like Earth, Mars has differentiated into a dense metallic core overlaid by less dense materials. Current models of its interior imply a core with a radius of about 1,7. This ironII sulfide core is thought to be twice as rich in lighter elements as Earths. The core is surrounded by a silicate mantle that formed many of the tectonic and volcanic features on the planet, but it appears to be dormant. Besides silicon and oxygen, the most abundant elements in the Martian crust are iron, magnesium, aluminum, calcium, and potassium. The average thickness of the planets crust is about 5. Earths crust averages 4. Surface geology. Mars is a terrestrial planet that consists of minerals containing silicon and oxygen, metals, and other elements that typically make up rock. The surface of Mars is primarily composed of tholeiiticbasalt,3. Earth or silica glass. Regions of low albedo suggest concentrations of plagioclase feldspar, with northern low albedo regions displaying higher than normal concentrations of sheet silicates and high silicon glass. Parts of the southern highlands include detectable amounts of high calcium pyroxenes. Localized concentrations of hematite and olivine have been found. Much of the surface is deeply covered by finely grained ironIII oxide dust. Although Mars has no evidence of a structured global magnetic field,4. This paleomagnetism of magnetically susceptible minerals is similar to the alternating bands found on Earths ocean floors. One theory, published in 1. October 2. 00. 5 with the help of the Mars Global Surveyor, is that these bands suggest plate tectonic activity on Mars four billion years ago, before the planetary dynamo ceased to function and the planets magnetic field faded. It is thought that, during the Solar Systems formation, Mars was created as the result of a stochastic process of run away accretion of material from the protoplanetary disk that orbited the Sun. Mars has many distinctive chemical features caused by its position in the Solar System. Elements with comparatively low boiling points, such as chlorine, phosphorus, and sulphur, are much more common on Mars than Earth these elements were probably pushed outward by the young Suns energetic solar wind. After the formation of the planets, all were subjected to the so called Late Heavy Bombardment. About 6. 0 of the surface of Mars shows a record of impacts from that era,4. There is evidence of an enormous impact basin in the northern hemisphere of Mars, spanning 1. Moons South Pole Aitken basin, the largest impact basin yet discovered. This theory suggests that Mars was struck by a Pluto sized body about four billion years ago. The event, thought to be the cause of the Martian hemispheric dichotomy, created the smooth Borealis basin that covers 4. Artists impression of how Mars may have looked four billion years ago5. Pinnacle Studio 12 Crack Keygen here. The geological history of Mars can be split into many periods, but the following are the three primary periods 5. Noachian period named after Noachis Terra Formation of the oldest extant surfaces of Mars, 4. Noachian age surfaces are scarred by many large impact craters. The Tharsis bulge, a volcanic upland, is thought to have formed during this period, with extensive flooding by liquid water late in the period. Hesperian period named after Hesperia Planum 3. The Hesperian period is marked by the formation of extensive lava plains. Amazonian period named after Amazonis Planitia between 3. Amazonian regions have few meteorite impact craters, but are otherwise quite varied. Olympus Mons formed during this period, with lava flows elsewhere on Mars. Geological activity is still taking place on Mars. The Athabasca Valles is home to sheet like lava flows created about 2. Mya. Water flows in the grabens called the Cerberus Fossae occurred less than 2. Mya, indicating equally recent volcanic intrusions. On February 1. 9, 2. Mars Reconnaissance Orbiter showed evidence of an avalanche from a 7. Soil. Exposure of silica rich dust uncovered by the Spirit rover. The Phoenix lander returned data showing Martian soil to be slightly alkaline and containing elements such as magnesium, sodium, potassium and chlorine. These nutrients are found in soils on Earth, and they are necessary for growth of plants. Experiments performed by the lander showed that the Martian soil has a basicp. H of 7. 7, and contains 0. Streaks are common across Mars and new ones appear frequently on steep slopes of craters, troughs, and valleys. The streaks are dark at first and get lighter with age. The streaks can start in a tiny area, then spread out for hundreds of metres. They have been seen to follow the edges of boulders and other obstacles in their path. The commonly accepted theories include that they are dark underlying layers of soil revealed after avalanches of bright dust or dust devils. Several other explanations have been put forward, including those that involve water or even the growth of organisms.