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Looking for Life in the Solar System and Beyond

Looking for Life in the Solar System and Beyond. Project Ozma. The Water Hole. A “ window ” where H and OH wavelengths pass through. Double meaning: A meeting place and a “ hole ” for H + OH (= H2O ). Big Ear. The Wow! Signal. Arecibo Radio Telescope. Message from Arecibo.

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Looking for Life in the Solar System and Beyond

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  1. Looking for Life in the Solar System and Beyond

  2. Project Ozma

  3. The Water Hole A “window” where H and OH wavelengths pass through. Double meaning: A meeting place and a “hole” for H + OH (=H2O).

  4. Big Ear

  5. The Wow! Signal

  6. Arecibo Radio Telescope

  7. Message from Arecibo

  8. Message from Arecibo decoded

  9. Pioneer and Voyager Pioneers 10 and 11 were launched in 1972-73. They are pointed towards the stars Aldebaran and Gliese 445. They will reach them in 2 and 4 million years. Voyagers 1 and 2 were launched in 1973. They are pointed towards the stars AC+79 3888 and Ross 248. They will reach them in 38 and 40 thousand years.

  10. The Pioneer Plaque

  11. The Voyager Record

  12. New Solar Systems • More than 800 new solar systems (1054 total planets) have been discovered. • Most of these have 1-3 Jupiter-sized planets • Planets are detected by studying star wobbles or eclipses. GQ Lupi and its planet, 22 X the mass of Jupiter 

  13. The youngest forming planet ever found is around a 2-milion-year-old star about 450 light years from Earth. The planet itself is estimated to be about 50,000 to 100,000 years old.

  14. LkCa 15b is 'building itself' out of dust and gas. It sits in a cleared zone between the star and the dust disc. It was discovered using a combination of optical and infrared imaging using the Keck telescopes on Mauna Kea, HI.

  15. This exoplanet is only 25 LY away. It was discovered using the Hubble Space telescope.

  16. Picture of the First Exoplanet: 2M1207b 230 LY away from Earth5X the mass of Jupiter3X the diameter of Jupiter

  17. Mars Mars may have hosted microbial life sometime in its early history. The most likely environment for this life was underground.

  18. Life on Mars? The Meteorite Debate

  19. Europa – Water world?

  20. Europa Geysers Water vapor plumes up to 224 miles high were imaged near Europa’s south pole. They were detected in UV light by the Hubble Space Telescope.

  21. Searching for Aliens

  22. Titan Titan has a thick atmosphere made of 95% nitrogen and 5% methane, with traces of hydrocarbons and hydrogen cyanide Surface Temperature = -288°F Titan has a larger diameter than Mercury or Pluto.

  23. Titan: lakes, life?

  24. Saturn’s moon Enceladus Liquid saltwater has been imaged squirting out of cracks in the ice crust of Enceladus by the Cassini orbiter.

  25. Triton • Liquid nitrogen volcanoes • Cantaloupe terrain • Underground oceans?

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