Spaceship Earth

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    A chance alignment of planets has allowed scientists to compare the protective effects of Earth's magnetic field with that of Mars' naked atmosphere.
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    Scientists are now using one of the most powerful supercomputers in the world to better understand the processes that give rise to space weather.
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    Scientists have developed a new method to measure cold plasma above the Earth, and have revealed more cold, charged ions in Earth’s upper altitudes than previously imagined.
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    The pattern of clouds on Earth is largely determined by the arrangement of the continents below. Now, astronomers are modeling the clouds at different periods in Earth’s past to better understand what alien worlds might look like.
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    A NASA mission has provided the first view of Earth's 'atmospheric heartbeat' from space.
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    New research shows that the bow shock formed by the interactions between the solar wind and Earth's magnetic field is remarkably thin.
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  • Erupções Solares Assassinas Não Destruirão a Terra em 2012
    As condições meteorológicas espaciais podem afetar profundamente o planeta Terra. Erupções solares são capazes de interromper a comunicação com satélites e ejeções de massa coronal podem até danificar redes de energia na Terra. Mas mesmo no seu pior, erupções e ejeções de massa do Sol
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    Space weather can profoundly affect planet Earth. Solar flares are capable of disrupting satellites and coronal mass ejections might even damage power grids on Earth. But even at their worst, flares and mass ejections from the Sun are not capable of destroying Earth.
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    A new study is providing information about how radiation from space can damage life on Earth, and shows that a short gamma ray burst would be more significant than a longer gamma ray bust. If one of these bursts of energy occurred nearby, it could
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    A new report from the National Research Council says that the problem of space debris in orbit around the Earth is getting worse. Hazards posed by abandoned equipment, spent rocket bodies, and other debris is an increasing risk for future space missions.
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    If a rocky planet has no moon, could complex life still arise? New research looks at the effects a large moon can have on a planet´s orbital stability over time.
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    Long-term simulations show that close encounters between the minor planets Ceres and Vesta could affect the Earth's orbit.
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    A phenomenon known as 'magnetic reconnection' is responsible for much of the space weather that affects Earth. NASA is now preparing a new mission dedicated to studying this dynamic magnetic system and its influence on our planet.
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    Despite its magnetic field, Earth is losing its atmosphere to space at about the same rate as planets that lack this protective barrier against the solar wind. Scientists now are beginning to question whether magnetic fields really are vital to helping a planet hold
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    Special cameras on the IBEX spacecraft have snapped their first pictures of the complex interactions between space weather and Earth's magnetic field. The new data could help astrobiologists understand the links between the space environment and Earth's habitability.
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