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Earth's Past, Made Visible
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| Topic: Earth |
05/23/11 |
| Summary: New visualizations of the Earth from space provide a unique image of how the Earth has changed over the past 750 million years. |
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Earth's Gravity Revealed
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| Topic: Earth |
04/03/11 |
| Summary: Observations from ESA's GOCE satellite have provided the best ever map of Earth's gravity. The research could further our understanding of the Earth. |
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A 'Supermoon' Did Not Cause the Japanese Earthquake
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| Topic: Earth |
03/15/11 |
| Summary: Scientists agree, in no uncertain terms, that the Moon did not cause the earthquake in Japan. Understanding the causes and effects of earthquakes is important for astrobiologists who are trying to determine how events on Earth will shape life's future on our planet. |
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Earthquake's Affect on Earth
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| Topic: Earth |
03/15/11 |
| Summary: The magnitude 8.9 earthquake in Japan was the result of thrust faulting between the Pacific and North American plates. The shift of mass made the Earth's rotation speed up by 1.6 microseconds. |
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Chromium Provides Clues to Earth's Formation
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| Topic: Earth |
03/01/11 |
| Summary: By studying meteorites, scientists have discovered new information about how the Earth formed. Studying the early stages of planet formation can help astrobiologists determine how and where to search for habitable planets in the Universe. |
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Ice Data for All
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| Topic: Earth |
02/04/11 |
| Summary: Long-awaited data collected by ESA's CryoSat mission has now been released to the public. Early results are helping scientists understand circulation in the Arctic Ocean and the links between climate and arctic ice. The data will help astrobiologists understand what is in store for the future of life on Earth. |
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How Earth´s Orbital Shift Shaped the Sahara
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| Topic: Earth |
12/20/10 |
| Summary: A change in the Earth´s orbit, many scientists believe, transformed the "Green Sahara" into what is now the largest desert on the planet. While scientists are still trying to find out if the slow shift in orbit had rapid or gradual environmental consequences, they say Earth´s orbit will continue to change today and into the future. |
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A New Way to Analyze Ancient Atmospheres
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| Topic: Earth |
11/10/10 |
| Summary: Chemists have uncovered a chemical reaction that could allow scientists to study the ancient atmospheres of Earth and Mars. The technique could yield clues about past life on Earth - and the potential for past life on Mars. |
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Thawing a Planet-Sized Snowball
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| Topic: Earth |
11/04/10 |
| Summary: The Earth has plunged into a deep freeze several times in the past, with ice covering the land and sea for millions of years. Researchers are studying how the planet eventually escaped these cold spells, and whether Earth-like planets elsewhere in the galaxy may be susceptible to the same climate catastrophe. |
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