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    When the Cassini-Huygens mission parted Titan’s smoggy veil, it revealed a familiar and yet utterly alien landscape, one where now-dry methane rivers carved out channels in mountains of ice. There’s no evidence for biology on Titan’s frozen terrain, but in this interview with Astrobiology Magazine,
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    Researchers have uncovered startling new evidence about an extreme period of a sudden, fatal dose of global warming some 180 million years ago during the time of the dinosaurs. The scientists’ findings could provide vital clues about climate change happening today and in the future.
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    When Spirit reached the base of the hills five months after landing, it immediately began finding rocks with wetter histories
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    In recognition of those Mars Rover graphics in the PBS/NOVA program “Mars Dead or Alive,” Maas just received an Emmy Award nomination. His next big project was to simulate the dramatic impact of a bullet-like probe with a icy comet for the recent mission, Deep
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    We’ve had a lot of orbiters since the Mariner missions, and not only do we see water features in the land, but we also see evidence of tectonics, or possibly volcanic activity.
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    A planet larger than Pluto has been discovered in the outlying regions of the solar system. The planet is a typical member of the Kuiper belt, but its sheer size in relation to the nine planets already known means that it can only be classified
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    Chris McKay, a planetary research scientist at NASA Ames Research Center, gave a public lecture, sponsored by the Planetary Society, in which he talked about the scientific results of the Cassini-Huygens mission. In this first of four parts, McKay discusses Titan’s atmosphere.
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    Dr. Dean Eppler is a geologist at the Johnson Space Center in Houston, Texas. For the past eight years, Eppler has participated in field tests of experimental spacesuits as part of the Desert RATS (Research and Technology Studies) project. The suits are being tested to
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    At the recent Earth System Processes II conference, Jack Farmer gave a talk on the current state of understanding about Mars: what we know and what we’d like to know. In this, the third and final part of a three-part series, he outlines the options
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    Life on Earth was made possible by the death of stars. Atoms like carbon and oxygen were expelled in the last few dying gasps of stars after their final supplies of hydrogen fuel were used up.
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    The discovery that Europa most likely has a cold, salty ocean beneath its frozen icy crust has put Europa on the short list of objects in our solar system that astrobiologists would like to study further
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    Sending men to the Moon certainly changed the public perception of life on our own planet, thanks to the astronauts’ photographs of the Earth looking like an illuminated blue marble suspended in the deep black emptiness of space.
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    In their explorations of Mars, both the Spirit and Opportunity rovers found evidence that liquid water was once on the planet’s surface. Joy Crisp, project scientist for NASA’s Mars Exploration Rovers, discussed the rovers’ long journey and their surprising discoveries at a public lecture on
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    The detections of methane in the martian atmosphere have challenged scientists to find a source for the gas, which is usually associated with life on Earth. One source that can be ruled out is ancient history: Methane can survive only 600 years in the martian
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    NASA’s Cassini spacecraft has obtained new detailed images of the south polar region of Saturn’s moon Enceladus. The data reveal distinctive geological features and the most youthful terrain seen on the moon. These findings point to a very complex evolutionary history for Saturn’s brightest, whitest
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