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Looking for Life in the Solar System and Beyond
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Project Ozma
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The Water Hole A “window” where H and OH wavelengths pass through. Double meaning: A meeting place and a “hole” for H + OH (=H2O).
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Big Ear
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The Wow! Signal
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Arecibo Radio Telescope
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Message from Arecibo
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Message from Arecibo decoded
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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. Pioneer and Voyager
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The Pioneer Plaque
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The Voyager Record
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New Solar Systems 1162 new solar systems (1853 total planets) have been discovered. Most of these have 1-3 Jupiter-sized planets Planets are detected by studying star wobbles or eclipses. Star GQ Lupi (A)and its planet (B) “B” is 22 times the mass of Jupiter!
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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.
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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.
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This exoplanet is only 25 LY away. It was discovered using the Hubble Space telescope.
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Picture of the First Exoplanet: 2M1207b 230 LY away from Earth 5X the mass of Jupiter 3X the diameter of Jupiter
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Mars Mars may have hosted microbial life sometime in its early history. The most likely environment for this life was underground.
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Life on Mars? The Meteorite Debate
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Europa – Water world?
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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.
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Searching for alien life in Europa’s oceans
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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.
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Titan: lakes, life?
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Saturn’s moon Enceladus Liquid saltwater has been imaged squirting out of cracks in the ice crust of Enceladus by the Cassini orbiter.
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Water on the dwarf planet Ceres
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Liquid nitrogen volcanoesLiquid nitrogen volcanoes Cantaloupe terrainCantaloupe terrain Underground oceans?Underground oceans? Triton
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