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Clays on Mars More Plentiful Than Expected
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| Topic: Mars |
12/23/12 |
| Summary:
A new study indicates that clay minerals cover a larger portion of Mars than previously thought. Clay minerals usually form when water is present for long periods of time, and they could help astrobiologists understand the potential for habitable environments on ancient Mars. |
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Geo-engineering Against Climate Change
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| Topic: Climate |
12/22/12 |
| Summary:
New calculations indicate that seeing infertile areas of the oceans would cause enough of an increase in photosynthesizing marine life to address carbon emissions. |
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Spiral Disk Structure May Reveal Planets
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| Topic: New Planets |
12/22/12 |
| Summary:
Astronomers have captured clear, detailed images of a disk around a young star. Within the disk is a spiral structure with two clearly discernible arms, and the team believes this shape may be caused by planets. |
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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 |
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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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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 |
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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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