Search For Extraterrestrial Life

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Search For Extraterrestrial Life

  1. 1. Search For Extraterrestrial Life By:Craig Gantt Snieburn SC104 K001 AMU
  2. 2. What Are We Looking For? <ul><li>Bacteria, signs of bacteria. </li></ul><ul><li>For most of the earth’s history Bacteria has been the predominate form of life. </li></ul><ul><li>Is it behaving and evolving the same way it does here on earth? </li></ul>
  3. 3. A Good Starting Place <ul><li>Planets that have or show signs of at one point having water. Water is essential for life as we know it. </li></ul><ul><li>Organics, the building blocks of life, molecules that contain carbon. </li></ul><ul><li>All life as we know it is carbon based. This makes looking for carbon logical in looking for life. </li></ul><ul><li>Planets orbiting stars in solar systems similar to our own. </li></ul>
  4. 4. Viking Lander 1&2 <ul><li>June 19, 1976 </li></ul><ul><li>First U.S. mission to land on Mars and return images. </li></ul><ul><li>Viking 1-Chyrse Planitia </li></ul><ul><li>Viking 2-Utopia Planitia </li></ul><ul><li>Conducted 3 experiments designed to find Martian life. </li></ul>
  5. 5. Viking Lander 1&2 <ul><li>Biological test discovered unexpected chemical activity in the Martian soil but, did not find evidence of living organisms on or around the sites. </li></ul><ul><li>Both landers powered by thermoelectric generators. </li></ul><ul><li>Last data from Viking 2 received April 11, 1980. </li></ul>
  6. 6. Phoenix Lander <ul><li>NASA’s first Mars Scout Class in its “Scout Program”. </li></ul><ul><li>Seeks to Verify the presence of water and habitable conditions in the Martian artic. </li></ul><ul><li>Searches for complex organic molecules in the ice-rich Martian soil. </li></ul><ul><li>Landed in the Northern Artic Plains of Mars where sub-surface water ice is suspected. </li></ul>
  7. 7. Hubble Telescope <ul><li>Positioned above the atmosphere which distorts and blocks light to our planet. </li></ul><ul><li>In operation since 1980. </li></ul><ul><li>Detected an organic molecule in Jupiter sized planets atmosphere orbiting another star (methane) which can play a key role chemical reactions necessary to support life. </li></ul><ul><ul><ul><li>Mars </li></ul></ul></ul>
  8. 8. Mars <ul><li>Polar caps which may contain water ice. </li></ul><ul><li>Canals on Mars suggest water may have been there at one point in its history. </li></ul><ul><li>Probe findings on Mars suggest that it used to be a wormer, wetter environment more suitable to life than it is today. </li></ul>
  9. 9. Europa <ul><li>Moon of Jupiter </li></ul><ul><li>Entire surface covered with a smooth layer ice. </li></ul><ul><li>Tidal friction from Jupiter heats up its core enough to possible support liquid water. </li></ul><ul><li>Europa is believed to house the worlds largest sub-terrain ocean which may contain an ecosystem similar to the deep sea communities found on earth. </li></ul>
  10. 10. Encelades <ul><li>Moon of Saturn. </li></ul><ul><li>Contains an active plume spewing out water and other materials. </li></ul><ul><li>This active nature points towards subterranean water reservoirs. </li></ul>
  11. 11. Resources <ul><li>Nasa.gov </li></ul><ul><li>Space.com </li></ul><ul><li>Foxnews.com </li></ul><ul><li>Esa.int </li></ul><ul><li>Marsprogram.jpl.nasa.gov </li></ul>

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