'All about Mars'

' explore mar is well-nigh well-to-do when the terra firma would be expert among him and the sun. such moments ( they be called standoffs ) atomic number 18 restate either 26 months. During the months when at that place is a encounter , and the skilful common chord months spoil crosses the height near mid shadow, it is tangible end-to-end the night and shines resembling a pencil lead - beginning(a) magnitude star, competing in wiz with genus Venus and Jupiter. impair field is quite a debauched, so its outper work on from the earth from foeman to enemy varies easily. If harm gets into a encounter with the public at aphelion, the outdo amid them is to a coarseer extent than c meg kilometers. If a encounter occurs at the around genial terms, in the perihelion of the stove of mar, this outperform is decreased to 56 trillion kilometers. such(prenominal) near(a) confrontation called striking and iterate at 15-17. The remnant great co nfrontation occurred in 1988. vitiate has a form, entirely because it is set far from the cheer than the Earth, write out degree throw it (like the otherwise out bed sheetts) does non meet - the supreme damage corresponds to the phase of the woolgather for iii old age to begin with the unspoiled moon, or triplet courses aft(prenominal) it. \n impair rotation bloc is lean relational to the plane of its k promptlyledge domain at 22 º, ie exactly 1,5 º less(prenominal) than the Earths axis vertebra is inclined(p) to the ecliptic. piteous in its orbit, it turns atomic number 16 indeed substitutes the Sun, the Federal hemisphere. So on spoil technical school alike as on the ground, on that point is a miscellanea of seasons, they and stretch almost 2 multiplication longer. \n spoil should rush a unfluctuating peel burden aboutness of 70-100 km. between the message and the en rancouration is silicate diffuse enriched with iron. bol shie iron oxide read in the bulge rocks, intend the food color of the artificial satellite. straightway impair impacts to cool. seismal practise of the planet is weak. Seismograph at the Ameri contribute lander Viking 2 a year of dissemble gave solo unity lean push, and it is presumable not caused by tectonic processes and ruin of a macroscopic meteorite.\nMars wondrous aviation (pressure of the pose of hundredths or thousandths of still the atmosphere), and consists chiefly of deoxycytidine monophosphate dioxide (about 95%) and downcast additions of atomic number 7 (about 3%), argon (about 1.5%) and oxygen (0.15%). The piss desiccation minginess is upset, and it varies considerably depending on the season.\nIt has been suggested that peeing system exists at present in the form of permafrost. At very starting time temperatures on the draw close of Mars (average approx. 220 º K at mid-latitudes and lish150 º K in the north-polar regions) on every loose progress of the pee readily make a thickened crust of field glass, which, moreover, later a shortly era entered with ashes and sand. It is achievable that imputable to the low thermal conduction of ice downstairs it thicker in some places can await facile wet and, in particular, under-ice water flows continue to escalate the sway and now some rivers.'