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Partly Cloudy with a Chance of Meteorites
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| Topic: Meteorites, Comets and Asteroids |
12/21/12 |
| Summary: A new tool is helping improve the odds of identifying meteorite falls on Earth. Using weather radars, scientists have helped identify three confirmed meteorites in the United States alone in the past eight months. |
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How Microbes Leap Across the Planet
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| Topic: Extreme Life |
12/20/12 |
| Summary: A surprising number of microorganisms are hitching rides in the upper troposphere and crossing the Pacific Ocean from Asia to North America. |
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Swansong Biospheres
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| Topic: Earth |
12/20/12 |
| Summary: Billions of years from now, life on Earth will be extinguished when the Sun becomes a Red Giant star. New research determines the last places life will exist before our planet is sterilized. |
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Tau Ceti May Have a Habitable Planet
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| Topic: New Planets |
12/19/12 |
| Summary: Astronomers have discovered that one of the closest Sun-like stars to our solar system may host five planets. One of the planets may lie within the star's habitable zone. |
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Bacteria Needed to Make Fertile Soil
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| Topic: Biosphere |
12/18/12 |
| Summary: A new study shows that dead bacteria are important in soils because their biomass is converted to organic soil components. |
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Why the World Didn't End Yesterday
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| Topic: Earth |
12/18/12 |
| Summary: NASA is so sure the world won't come to an end on Dec. 21, 2012, they have already released this news item for the day after. |
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Tormentas en la Máquina
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| Topic: Climate |
12/17/12 |
| Summary: Dos investigadores de la NASA y la Universidad de Columbia, Emmi Yonekura y Tim Hall, están construyendo un modelo estadístico de tifones que puede generar rápidamente millones de tifones sintéticos desde su nacimiento hasta su terminación, y cuyas propiedades estadísticas coinciden con las de cientos de tifones históricos documentados. |
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Storms in the Machine
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| Topic: Climate |
12/17/12 |
| Summary: NASA researchers are constructing a statistical typhoon model that can quickly generate millions of synthetic typhoons from birth through termination. Their work could provide new details about the climate of Earth, and what the future may hold for life on our planet. |
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Slicing Up Time on the Space Station
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| Topic: Missions |
12/17/12 |
| Summary: Astronaut Don Pettit continues his diary from Expedition 31 on the International Space Station. In this installment he talks about how astronauts spend their time on the ISS - from performing experiments to simply trying to stay alive. |
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