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Reasat EWSIS

Extraterrestrial life - Wikipedia, the free encyclopedia - 1 views

en.wikipedia.org/...Extraterrestrial_life

life aliens Mars Europa space science discovery NASA research exploration

shared by Reasat EWSIS on 09 Dec 09 - Cached
  • Extraterrestrial life is defined as life which does not originate from planet Earth. The existence of such life is theoretical and all assertions about it remain disputed.
    • Reasat EWSIS
      Reasat EWSIS on 09 Dec 09
       
      This is the general definition of what aliens are. They are known as extraterrestrial life that do not live on Earth, but oter space. The last sentence is important because, scientists are still trying to prove the existence of aliens.
  • Suggested locations which might have once developed, or presently continue to host life similar to our own, include the planets Venus[1] and Mars, moons of Jupiter and Saturn (e.g. Europa,[2] Enceladus and Titan) and Gliese 581 c and d, recently discovered to be near Earth-mass extrasolar planets apparently located in their star's habitable zone, and with the potential to have liquid water.[3]
    • Reasat EWSIS
      Reasat EWSIS on 09 Dec 09
       
      There may be potnetial alien life in various planets, moons, and star (i.e. - Mars, Venus, Jupiter, Europa)
  • Alien life, such as bacteria, has been theorised by scientists such as Carl Sagan to exist in our solar system and quite possibly throughout the universe although no samples have been found.
    • Reasat EWSIS
      Reasat EWSIS on 09 Dec 09
       
      Where is the evidence that bacteria exist else where?
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  • Scientists are directly searching for evidence of unicellular life within the solar system, carrying out studies on the surface of Mars and examining meteors which have fallen to Earth. A mission is also proposed to Europa, one of Jupiter's moons with a possible liquid water layer under its surface, which might contain life.[19]
    • Reasat EWSIS
      Reasat EWSIS on 09 Dec 09
       
      Another source that goes more in detail about this is: http://www.disclose.tv/forum/finding-life-mars-vs-europa-t10371.html
  • Independently, in 1996, structures resembling nanobacteria were reportedly discovered in a meteorite, ALH84001, thought to be formed of rock ejected from Mars. This report is also controversial, and scientific debate continues.
    • Reasat EWSIS
      Reasat EWSIS on 09 Dec 09
       
      This is important because this is proof that extraterrestrial life existed in outer space, more specifically Mars.
    • JosephT EWSIS
      JosephT EWSIS on 11 Dec 09
       
      This isn't proof at all. It says possibly, and it says that there is a lack of evidence.
  • In February 2005, NASA scientists reported that they had found strong evidence of present life on Mars.[21] The two scientists, Carol Stoker and Larry Lemke of NASA's Ames Research Center, based their claims on methane signatures found in Mars' atmosphere resembling the methane production of some forms of primitive life on Earth, as well as on their own study of primitive life near the Rio Tinto river in Spain.
  • Within Islam, the statement of the Qur'an "All praise belongs to God, Lord of all the worlds" indicates multiple universal bodies, and maybe even multiple universes, which may indicate extraterrestrial and even extradimensional life. Surat Al-Jinn also mentioned a statement from a Jinn regarding the current status and ability of his group in the heavens.
    • Reasat EWSIS
      Reasat EWSIS on 10 Dec 09
       
      This is interesting because I am a Muslim my self. A lot of things can have different interpretations. I am going to try looking for it in the Qur'an.
  • Europa - Europa may contain liquid water beneath its thick ice layer. It is possible that vents on the bottom of the ocean warm the ice, so liquid could exist beneath the ice layer, perhaps capable of supporting microbes and simple plants, just like in Earth's hydrothermal vents.[2]
    • Reasat EWSIS
      Reasat EWSIS on 10 Dec 09
  • Mars - Life on Mars has been long speculated. Liquid water is widely thought to have existed on Mars in the past, and there may still be liquid water beneath the surface. Methane was found in the atmosphere of Mars. By July 2008, laboratory tests aboard NASA's Phoenix Mars Lander had identified water in a soil sample. The lander's robotic arm delivered the sample to an instrument which identifies vapors produced by the heating of samples. Recent photographs from the Mars Global Surveyor show evidence of recent (i.e. within 10 years) flows of a liquid on the Red Planet's frigid surface.[34]
  • The other large moons of our system which have been visited appear similarly lifeless, though the interesting geothermic forces observed (Io's volcanism, Europa's ocean, Titan's thick atmosphere) have underscored how broad the range of potentially habitable environments may be.
  • JosephT EWSIS on 11 Dec 09
     
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