Retrospections

  • LEGO Biology
    Planetary scientist Chris McKay asks one of the most interesting questions in astrobiology: how would one know an organic relic when it appears?
    more...
  • On Ammonia and Astrobiology
    Arizona's Jonathan Lunine presented a lecture entitled "Titan: A Personal View after Cassini's first six months in Saturn orbit" at a NASA Director's Seminar on January 24, 2005. Lunine discusses the broader implications of ammonia in astrobiology.
    more...
  • Crossing the Treeline
    Planetary scientist Chris McKay describes one of the driest place on Earth and how one might test for the equivalent of a bacterial 'treeline', a region so harsh in the Andes Mountains where even microbes cannot thrive.
    more...
  • Comparing the Triad of Great Moons
    Arizona's Jonathan Lunine presented a lecture entitled "Titan: A Personal View after Cassini's first six months in Saturn orbit" at a NASA Director's Seminar on January 24, 2005. Lunine compares the great moons of Jupiter and Saturn in an edited transcript of Part 3.
    more...
  • The Missing Methane
    Arizona's Jonathan Lunine presented a lecture entitled "Titan: A Personal View after Cassini's first six months in Saturn orbit" at a NASA Director's Seminar on January 24, 2005. Lunine discusses the question of missing methane in an edited transcript of Part 2.
    more...
  • Search for a Second Genesis
    Chris McKay, a planetary scientist at the Ames Research Center, has long been investigating the coldest and driest places on Earth. In this part of McKay's lecture series, entitled, Drilling in Permafrost on Mars to Search for a Second Genesis of Life, he touches on
    more...
  • Investigating Titan's Surface
    Jonathan Lunine, a professor of planetary science and physics at the University of Arizona's Lunar and Planetary Laboratory in Tucson, Arizona, is also an interdisciplinary scientist on the Cassini/Huygens mission.
    more...
  • Investigating Titan’s Surface
    Jonathan Lunine, a professor of planetary science and physics at the University of Arizona's Lunar and Planetary Laboratory in Tucson, Arizona, is also an interdisciplinary scientist on the Cassini/Huygens mission.
    more...
  • Earth’s Childhood Attic
    The moon is sometimes referred to as Earth's childhood attic, a rich repository of what the early terrestrial geology might have promised prior to the advent of life. Europe's Chief Scientist, Bernard Foing, looks at what the moon can tell us about our past.
    more...
  • Earth's Childhood Attic
    The moon is sometimes referred to as Earth's childhood attic, a rich repository of what the early terrestrial geology might have promised prior to the advent of life. Europe's Chief Scientist, Bernard Foing, looks at what the moon can tell us about our past.
    more...