Milky Way may be the most foreign of the seven planets (Photos) 2010-05-20 10:06 Source: Sohu IT Author: Jean-force [Comment 0] Milky Way may have lecture up to 400 billion stars, we assume that only a quarter of the stars have planets, but only a quarter of these planets for life to exist.
galaxy may be up to 400 billion stars, we assume that only a 15 min of the stars have planets, yet only a quarter of these planets appropriate because life, then the Milky Way still has a place there may be hundreds of millions of organisms. Although we have no found extraterrestrial life, yet there are seven districts maximum likely to aliens: Mars, Europa, Ganymede, Callisto, Titan,
Nike Shox Dreams, Enceladus, Ge Lisi 581d.
a Mars
our solar system, Mars is most favor the planet Earth, either in quondam and present, the possibility of Martian life exists are very great,
Nike Shox Torch, and the evidence is very conclusive. People generally trust that the most momentous necessities of life - liquid water, quondam the cross-flow above the planet and over. Mars Global Observer recently published photos show the Red Planet's surface on the chilly, there is evidence of fluid stream (this phenomenon happened in the past decade now).
II Europa
Europa's surface is covered with a thick layer of ice, so it appeared very special. Although in no way the sun, but the cold surface of Europa is threaten to exist under a center full of peppery lava tin be heated to the ice, which produces the cold surface of a liquid ocean beneath. This method that it has patronize for micro-organisms or uncomplicated plant life conditions,
Nike Shox R3-R4 Combination, as in hydrothermal vents in the earth, for happened.
three Titan
Titan is Saturn's largest moon, there is remove evidence that: it is the surface of the lake there is a complete liquid . Although the lakes inside the liquid is not made of water (the makeup of hydrocarbons), but it is a complicated organic compounds produced ideal propagating ground. Moreover, Titan's thick air also contains nitrogen and other units of life to create.
four Enceladus
Enceladus is the sixth largest satellite of Saturn,
Nike Shox NZ, however it is relatively small, but they may nurture a life. In truth,
Nike Shox R6, Enceladus is the three stars in the external solar system have scrutinized one of the volcanic outbreak of stars. More importantly, it's outbreak involve large sums of water, so numerous experts believe that under the surface of the icy satellites there is a liquid ocean. And where there is water, there may be life.
five Tethys
Tethys Saturn's largest moon, is the largest satellite in our solar system. Its surface is mainly composed of silicate and water ice, but below the surface of 200 km is considered to constitute the existence of a salt sea, the Tethys Ocean sandwiched between the ice. With close to Enceladus, and other large planets satellites, Tethys has also been the character of tidal heating, which makes it under the surface of a formation to nourish sufficient heat to subserve the formation of liquid water.
six Dione
orbit of Dione is the second largest satellite of Saturn, Enceladus, and than the Tethys are far away from Saturn, so along the tidal heating is less important. Nevertheless, many scientists believe it has a layer of liquid water under the surface. Because of its low radiation intensity, so the Jupiter system has been considered the most suitable base for a future where mankind.
7 Ge Lisi 581d
Ge Lisi 581d namely a named Geli Si 581 in the Libra star orbit a planet, It namely likewise found further the solar system 1 of the few Earth-sized planets very an. Gliese 581d place is very profitable to the subsistence of fluid water,
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