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	Scientists are particularly interested in Saturn's moon Titan because it's one of the few known moons with its own dense atmosphere. Titan's atmosphere is also thought to be very similar to what Earth's atmosphere was a long time ago. By learning about Titan, we'll learn about our own planet.

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For current information about the NASA Astrobiology Program, please visit http://astrobiology.nasa.gov/

2007-03-06 | SCIENCE
DEPTHX Diving

Carnegie Mellon researchers are helping a NASA underwater robot probe Earth's deepest sinkhole - ZacatÃ³n. The bot's journey will take place in May, aided by Carnegie Mellon-designed navigation and mapping software. According to Bill Stone, leader of the NASA-funded Deep Phreatic Thermal Explorer(DEPTHX) mission, the 2.5-meter bot maneuvered "phenomenally well" within the confines of a smaller sinkhole during recent tests in Mexico.

More on this story Full text of original item from Carnegie Mellon University, Mar 06, 2007

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