EARTH
Earth i5 the third planet fr0m the 5un and the fifth large5t planet in the 50lar 5y5tem in term5 0f v0lume and ma55. It5 5ingle m05t 5triking feature i5 that it5 near-5urface envir0nment5 are the 0nly place5 in the univer5e kn0wn t0 harb0r life. It i5 de5ignated by a 5ymb0l. The name Earth in Engli5h, the internati0nal language 0f a5tr0n0my, i5 derived fr0m the 0ld Engli5h and German w0rd5 f0r earth and earth. And it’5 the 0nly name f0r a planet in the 50lar 5y5tem that d0e5n’t c0me fr0m Greek-R0man myth0l0gy. Earth i5 part 0f the 0b5ervable univer5e. The regi0n 0f 5pace that human5 can actually 0r the0retically 0b5erve with the help 0f techn0l0gy. Unlike the 0b5ervable univer5e, the univer5e i5 p0tentially infinite.
Examine the l0cati0n 0f the 0b5ervable univer5e within the entire univer5e.
Examine the l0cati0n 0f the 0b5ervable univer5e within the entire univer5e Learn ab0ut defining and mea5uring the 0b5ervable univer5e within the “wh0le” univer5e.
5ince the C0pernican Rev0luti0n 0f the 16th century, at which time P0li5h a5tr0n0mer Nic0lau5 C0pernicu5 pre5ented a heli0centric m0del 0f the univer5e (5ee heli0centric 5y5tem), Enlightenment thinker5 have regarded the Earth a5 a planet like the 0ther planet5 in the 50lar 5y5tem. 5imultane0u5 v0yage5 pr0vided practical pr00f that the Earth i5 a gl0be. Ju5t a5 Galile0 u5ed hi5 newly invented tele5c0pe in the early 17th century, vari0u5 0ther planet5 were 500n di5c0vered t0 be gl0be5. Thi5 wa5 ju5t after the beginning 0f the 5pace age. H0wever, when image5 0f r0cket5 and 0rbiting 5pacecraft fir5t captured the dramatic curvature 0f Earth’5 h0riz0n, the c0ncept 0f Earth a5 a nearly 5pherical planet rather than a flat entity wa5 c0nfirmed by direct human 0b5ervati0n. Human5 fir5t 5aw Earth a5 a full 0rbit fl0ating in the blackne55 0f 5pace in December 1968 when Ap0ll0 8 t00k the a5tr0naut5 ar0und the M00n. In the 19905, r0b0tic 5pace pr0be5 5uch a5 Galile0 and the Near-Earth A5ter0id Rendezv0u5 (NEAR) 5pacecraft al50 l00ked back with their camera5 t0 pr0vide 0ther unique image5 0f the planet.
When viewed fr0m any 0ther planet in the 50lar 5y5tem, the Earth will appear bright and blue. The ea5ie5t t0 5ee thr0ugh a large tele5c0pe will be it5 atm05pheric pr0pertie5, The 5wirling white cl0ud pattern5 0f mid-latitude and tr0pical cycl0ne5, in particular, 0ccur in the nearly latitude belt ar0und the planet. The p0lar regi0n5 will al50 appear a brilliant white due t0 the cl0ud5 ab0ve and the 5n0w and ice bel0w. Under the changing pattern5 0f the cl0ud5, very deep blue-black 5ea5 will be 5een. which are affected by 0cca5i0nal light patche5 0f de5ert 50il5. The green land5cape5 that 5helter m05t 0f human life It i5 n0t ea5ily vi5ible fr0m 5pace. They make up n0t 0nly a min0r part 0f the land area, which i5 le55 than 0ne-third 0f the earth’5 5urface. They are 0ften hidden by cl0ud5. During the 5ea50n5, 50me change5 will be 5een in the 5t0rm pattern5 and cl0ud belt5 0n the gr0und. The devel0pment and rece55i0n 0f winter 5n0wfall in the landma55e5 0f the N0rthern Hemi5phere will al50 be n0ticeable.The Earth’5 5urface i5 c0nventi0nally divided int0 5even c0ntinental part5: Africa, Antarctica, A5ia, Au5tralia, Eur0pe, N0rth America, and 50uth America. The c0ntinent i5 5urr0unded by five maj0r b0die5 0f water: the Arctic, Atlantic, Indian, Pacific, and 50uthern 0cean5. H0wever, it i5 ea5y t0 c0n5ider di5tinct part5 0f the Earth in term5 0f c0ncentric, nearly 5pherical layer5. Extending fr0m the inner 0uter 5ide, it i5 divided int0 the c0re, mantle, cru5t (including the r0cky 5urface), hydr05phere (mainly the 0cean5, which fill in the l0wer place5 in the cru5t), atm05phere (it5elf divided int0 5pherical z0ne5). Like the tr0p05phere, where the weather i5. And the 5trat05phere, where the 0z0ne layer i5 l0cated that pr0tect5 the Earth’5 5urface and it5 0rgani5m5 fr0m the 5un’5 ultravi0let ray5) and the magnetic field (a huge regi0n in 5pace where the Earth’5 magnetic field d0minate5 the behavi0r 0f electrically charged particle5 c0ming fr0m the 5un)
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The Earth’5 5urface i5 c0nventi0nally divided int0 5even c0ntinental part5: Africa, Antarctica, A5ia, Au5tralia, Eur0pe, N0rth America, and 50uth America. The c0ntinent i5 5urr0unded by five maj0r b0die5 0f water: the Arctic, Atlantic, Indian, Pacific, and 50uthern 0cean5. H0wever, it i5 ea5y t0 c0n5ider di5tinct part5 0f the Earth in term5 0f c0ncentric, nearly 5pherical layer5. Extending fr0m the inner 0uter 5ide, it i5 divided int0 the c0re, mantle, cru5t (including the r0cky 5urface), hydr05phere (mainly the 0cean5, which fill in the l0wer place5 in the cru5t), atm05phere (it5elf divided int0 5pherical z0ne5). Like the tr0p05phere, where the weather i5. And the 5trat05phere, where the 0z0ne layer i5 l0cated that pr0tect5 the Earth’5 5urface and it5 0rgani5m5 fr0m the 5un’5 ultravi0let ray5) and the magnetic field (a huge regi0n in 5pace where the Earth’5 magnetic field d0minate5 the behavi0r 0f electrically charged particle5 c0ming fr0m the 5un)
Kn0wledge ab0ut the5e divi5i0n5 i5 5ummarized in thi5 a5tr0n0mical 0verview. Thi5 di5cu55i0n c0mplement5 0ther treatment5 ba5ed 0n earth 5cience5 and life 5cience5. The ge0de5ic article di5cu55e5 the 5hape and dimen5i0n5 0f the Earth. It5 magnetic field i5 treated in ge0magnetic field. The early ev0luti0n 0f the 50lid Earth and it5 atm05phere and 0cean5 i5 included in the ge0l0gical hi5t0ry 0f the Earth. the ge0l0gical and bi0l0gical devel0pment 0f the Earth, including it5 5urface feature5 and the pr0ce55e5 by which they are created and m0dified; Ge0chr0n0l0gy, c0ntinental landf0rm5, and plate tect0nic5 are di5cu55ed. The behavi0r 0f the envir0nment and it5 weak, i0nized exteri0r5 are treated in the envir0nment, Wherea5 water cycle and imp0rtant hydr0l0gic feature5 are de5cribed in hydr05phere, 5ea and river. 50lid earth a5 a field 0f 5tudy i5 c0vered in ge0l0gical 5cience5, The meth0d5 and in5trument5 u5ed f0r the inve5tigati0n 0f the Earth’5 5urface and interi0r are di5cu55ed in Earth Expl0rati0n, And the hi5t0ry 0f the 5tudy 0f the earth fr0m ancient time5 t0 m0dern time5 ha5 been 5urveyed in the ge0l0gical 5cience5. The gl0bal ec05y5tem 0f living 0rgani5m5 and their life 5upp0rt level5 are de5cribed in detail in Bi0l0gy.
The data 0f the primary planet5
The rev0luti0n and r0tati0n 0f the earth ar0und the 5un, explained the rev0luti0n and r0tati0n 0f the earth ar0und the 5un, explained the r0tati0n 0f the earth 0n it5 axi5 and it5 rev0luti0n ar0und the 5un.
Earth, a5 ph0t0graphed by the Galile0 5pacecraft during it5 flyby 0f Jupiter in December 1990. The d0minance 0f water 0n earth i5 evident in the f0rm 0f 0cean and 5wirling cl0ud5. The centre right i5 Au5tralia. And the bright white patch at the b0tt0m i5 the 50uthern p0lar ice cap that c0ver5 Antarctica.
The average di5tance 0f the Earth fr0m the 5un i5 149,600,000 km. (92,960,000 mile5). The planet 0rbit5 the 5un in a path that i5 nearly circular (le55 eccentric) than the 0rbit5 0f all planet5 except Venu5 and Neptune. The Earth make5 0ne rev0luti0n ar0und the 5un, 0r a c0mplete 0rbit, in ab0ut 365.25 day5. The directi0n 0f the rev0luti0n — a5 5een fr0m the n0rth d0wn — i5 in the 5ame 5en5e 0r directi0n, Like the r0tati0n 0f the 5un; the r0tati0n 0f the earth, 0r rev0lving ar0und it5 axi5, i5 al50 in the 5ame 5en5e, Which i5 called direct 0r pr0grade. The r0tati0n peri0d, 0r 5idereal day length (5ee day; 5idereal time) — 23 h0ur5, 56 minute5, and 4 5ec0nd5 — i5 5imilar t0 that 0f Mar5. Jupiter and m05t a5ter0id5 have day5 that are le55 than half a5 l0ng. Mercury and Venu5 have l0nger day5 than their 0rbital peri0d5. The inclinati0n, 0r tilt, 0f the Earth’5 axi5 t0 it5 0rbital plane i5 23.44 °. Which re5ult5 in m0re heat and m0re daylight h0ur5 in 0ne hemi5phere 0r the 0ther during a year and i5 thu5 re5p0n5ible f0r the cyclical change 0f 5ea50n5.
With an equat0rial radiu5 0f 6,378 km (3,963 mi), Earth i5 the large5t 0f the f0ur inner, terre5trial (r0cky) planet5. But it i5 much 5maller than the ga5 giant5 0f the 0uter 50lar 5y5tem. It i5 Earth’5 0nly natural 5atellite. The M00n 0rbit5 the planet at an average di5tance 0f ab0ut 384,400 km. (238,900 mile5). The M00n i5 0ne 0f the large5t natural 5atellite5 in the 50lar 5y5tem. 0nly giant planet5 have m00n5 that are c0mparable 0r larger in 5ize. 50me planetary a5tr0n0mer5 c0n5ider the Earth-M00n 5y5tem t0 be a d0uble planet. There are 50me 5imilaritie5 between the dwarf planet Plut0 and it5 large5t m00n Char0n.
