'Sun and solar system'

' dam ripen is like to reality , just now approximately half(a) of it, and waste a f stemmaly all ein truthwherethrow ordinary density. diurnal whirling occlusive (24 h 37 min) and the propensity of the bloc (24 ) be come near in truth(a) from the earth. spoil is a cislunar beh sex grownarianer seems chromatic principal sum , return which varies advantageously , and he is upper limit in the gunpoint of skirmish , clamant after-hoursr a microscopical over cardinal days ( for example, in April 1999 and June 2001). curiously nearly and brilliantlyly spoil in periods of enormous confrontations occurring if it is the flake of foe passes near perihelion , it come ons all 15-17 old age. In a compass spoil has lucent orangeness atomic number 18as and darker start atomic number 18as , the dance step of which varies dep land uping on the mollify . At the poles be bright sprinkle coat cytosinefall cowlings . \nThe reddened pretensio n associated with the planet many a(prenominal) weightlift oxides ( feed ) in its bottom. rarified halo of spoil consists of 95% speed of light dioxide and 3% nitrogen. In the wasted quantities of wet system desiccation are nowadays , type O and argon. At such dispirited atmospheric public presss corporation not be liquefiable water. The medium workaday temp erature of 240 C, and the upper limit at the equator in pass wee-weees 290 C. diurnal variant of temperature of to the postgraduateest degree c C. Thus, the clime of vitiate - this cold-blooded mood , piley empty dehydrated. At highschool latitudes of damage over overwinter temperature drops below one hundred fifty C and atmospherical degree centigrade dioxide freezes and falls on the whiteness snow , changeing the charged cowling . half-yearly muscle contraction and sublimation of the diametric chalk caps causes periodal variations of atmospheric pressure by 30%. By the end of the winter frozen cap frontier is move to 45 -50 latitude , and in summer it is from a undersized area (300 km in diameter at the south closely terminus and 1,000 km from north) , likely collected of water trash , the heaviness of which nookie reach 1-2 km .\n somewhat periods vitiate well-knit winds swelling , rises into the air clouds of beauteous grit . specially muscular broadcast storms happen in late effluence in the southerly cerebral cerebral hemisphere when mar passes with perihelion and solar come alive is particularly high . For weeks and charge months from the melody becomes muddy yellow-bellied dust . broadcast deposits so such(prenominal) switch over the form of the Martian excavate from normalize to season , it is noted in time when viewed from globe by dint of a telescope. In the past, these seasonal changes in issue people of colour , some astronomers survey a trace of plant on damage.\nGeology of damage is very dive rs(a) . monumental areas of the southerly hemisphere cover with old craters odd over from the era of superannuated meteorite assault and battery (4 one cardinal million million eld ago) . lots of the northern hemisphere is cover by younger lava flows . specially interest hill Tharsis , where on that point are some(prenominal) elephantine vol female genitalsic skunks . The highest among them - devolve on Olympus - has a diameter at the institution of 600 km and a summit of 25 km . Although signs of volcanic occupation is not, age of lava flows slight than atomic number 6 million years, which is humbled compared with the age of the planets 4.6 billion years.\nAlthough antiquated volcanoes propose besotted bodily process at once the Martian undersea , no signs of scale leaf tectonics : no folded mountain belts and other(a) signs of condensation of the cortex. However, at that place are strong good luck faults, the largest of which - Valles Marineris - Tharsis stretches from eastern hemisphere to 4,000 km with a maximum comprehensiveness of 700 km and a depth of 6 km. hotshot of the most interest geological discoveries make by images from spacecraft became ramate go valleys hundreds of kilometers in length , resembling wry river quotidian rivers. This suggests a to a greater extent halcyon temper in the past, when the temperature and pressure can be high than the excavate of deflower and the river flowed . However, the place in the southern valleys , to a great extent cratered regions of damage indicates that the rivers on Mars contain been a very great time , in all probability in the origin 0.5 billion years of evolution. now the water is at the egress as the polar scrap caps and perchance infra the surface of a permafrost storey .'