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Eating Ammonia
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| Topic: Extreme Life |
05/30/07 |
| Summary: Researchers have discovered a group of thermophilic archaea that are able to use ammonia as an energy source. This unique metabolic pathway has not been found in any other known high-temperature archaea, and will further our knowledge of how life has evolved to survive in harsh environments on Earth. |
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Fishing out New Species
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| Topic: Extreme Life |
05/25/07 |
| Summary: Scientists have found hundreds of new marine creatures in the vast, dark deep-sea surrounding Antarctica. The discoveries shed new light on the evolution and diversity of ocean life. |
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How Low Can Geologists Go?
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| Topic: Extreme Life |
05/22/07 |
| Summary: Scientists have begun the final leg of a five-year mission to reach the bottom of Earth's deepest known sinkhole. The mission could be an important step in developing missions to search for life in the liquid ocean below the icy surface of Jupiter's moon Europa. |
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Life in Asphalt
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| Topic: Extreme Life |
05/19/07 |
| Summary: Scientists have found that the La Brea tar pits in Los Angeles are home to hundreds of new bacteria species. The newly discovered bacteria have unique enzymes that allow them to survive and grow in heavy oil and natural asphalt. |
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Gazing at Medusa
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| Topic: Extreme Life |
04/20/07 |
| Summary: Scientists have discovered a new 'black smoker' 8,500 feet underwater along the Pacific Ocean floor off Costa Rica. Now dubbed the Medusa hydrothermal vent field, this deep sea environment supports many unique organisms, including some species that may be previously undiscovered. |
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Mega-advances from Metagenomics
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| Topic: Extreme Life |
04/03/07 |
| Summary: The emerging field of metegenomics allows researchers to study the DNA of entire communities of microbes simultaneously to advance our knowledge of Earth's most prolific organisms. Microbes can thrive in Earth's most inhospitable environments and are the most likely candidates for life in the Solar System. |
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Taking the Ocean´s Pulse
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| Topic: Extreme Life |
04/02/07 |
| Summary: Scientists at the Monterey Bay Aquarium Research Institute recently tested a new device, the Environmental Sample Processor, designed to probe the the ocean depths. Astrobiology Magazine Field Research Editor Henry Bortman joined them on a day-long voyage and filed this report on their progress. |
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Tibetan Microbe Mats
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| Topic: Extreme Life |
04/01/07 |
| Summary: Microbial communities in some of the world's oldest, driest and remote deserts may yield clues to the potential for life on Mars. |
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Protein Metal Jacket
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| Topic: Extreme Life |
03/24/07 |
| Summary: A new study may completely change our understanding of one of Earth's most radiation-resistant organisms, the bacterium Deinococcus radiodurans. The findings may have implications in protecting cancer patients from the harmful effects of radiation therapy, to ensuring the safety of astronauts on space missions. |
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The Ancient Past, Alive
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| Topic: Extreme Life |
03/22/07 |
| Summary: Cuatro Cienegas, a butterfly-shaped valley in Mexico´s Chihuahua desert, is a living laboratory for astrobiologists. By studying this unique and endangered ecosystem, they hope to learn more about the earliest life on Earth. |
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