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Few meteorite discoveries can rival the one that fell in 1969, just 60 miles north of Melbourne, Australia. Called the Murchison meteorite, the rock's interior showed signs of the protein building blocks of life. But whether those amino acids arose after the rock fell is one question that the experts still debate three decades later.
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Tuesday, September 23, 2003
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No single experiment, according to Carl Sagan, has done more to convince scientists that life is 'likely abundant in the cosmos' than the work fifty years ago by then graduate student, Stanley Miller. This week celebrates his milestone publication, and Astrobiology Magazine interviewed him about his work and reflections today.
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Tuesday, September 16, 2003
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In Memory of the Crew of the Space Shuttle Columbia "[To their] courage and daring and idealism..." Presidential statement, February 1, 2003
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Thursday, September 11, 2003
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How to predict reactions to receipt of evidence for an otherworldly intelligence? Some scientists argue that any unpredictable outcomes can only be judged against our own history.
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Wednesday, August 20, 2003
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Reviewing how state education policies reflect the sentiments of local politics reveals much about how successful we are about communicating with each other--in preparation for communication with another culture.
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Saturday, August 16, 2003
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What are the chances for a Federation, or Galactic Empire? Why does the universe seem like such an underpopulated place. Astronomer Seth Shostak considers this question in light of Fermi's Paradox.
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Wednesday, August 06, 2003
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Chris Chyba of the SETI Institute introduces the relation between what is the search for life elsewhere and the roadmap for astrobiology.
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Saturday, July 26, 2003
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NASA's Solar Exploration roadmap details both what is known about our neighborhood, and what new discoveries are hoped for in future missions. This three-part series examines the storyline behind how life came to Earth, and how we might seek to find it elsewhere.
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Friday, July 25, 2003
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Seeing the star of Bethlehem in December may or may not be a once per millenium event, according to whether that part of the stellar map is dense or sparse. Celestial alignments have long been calculated, but adjustments must be included to account for the impressive (hundreds of miles per second) speeds that our own Milky Way continues to spiral, along with its spinning inhabitants.
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Saturday, July 19, 2003
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If astronomers can be certain about one simple fact--the universe is a very big place--then the place of humans is one very small place. Or is it? The question of wisdom in science is about picking one's battles, and scientists often reflect on how each generation might best choose where in the seemingly infinite natural diversity to pick a probe and a place to poke it.
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Friday, July 11, 2003
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