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  • New Images of Mercury Just the Beginning
    NASA's MESSENGER spacecraft has returned 1500 images from orbit around Mercury. The instruments on MESSENGER are working, and the mission is now poised to help scientists understand the evolution of the small, rocky planet that lies closest to the Sun.
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    A new study shows that wind is a much more powerful force in shaping mountains than previously thought.
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  • Not Only the Fittest Survive
    A new theory about evolution has called into question the idea that 'only the fittest survive.' This means that biodiversity may evolve where previously thought impossible.
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    Intense global warming may have occurred more frequently in Earth's past than previously believed. New research shows that release of carbon dioxide from the deep oceans could have triggered these ancient 'hyperthermal' events.
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    Scientists have discovered that when icebergs cool and dilut the seas, they also raise chlorophyll levels. This may increase the amount of carbon dioxide that is absorbed in the Southern Ocean, and could have global implications for Earth's climate.
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    NASA's Stardust spacecraft has sent its last transmission to Earth. Since its launch in 1999, Stardust has provided astrobiologists with a wealth of data about the composition and nature of comets.
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    Cassini has observed strange variations in radio waves controlled by Saturn's rotation. The findings change current assumptions about radio emissions from gas giants. Studying Saturn and its environment is important in determining the types of planets that exist in the Universe and the potential for
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    The particle accelerator being used to analyze asteroid samples returned to Earth by by the Hayabusa spacecraft was damaged in the March 11 earthquake in Japan. Researchers have reported that the samples are undamaged and the accelerator will be repaire
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    Astronomers have discovered the coldest known star. The unique brown dwarf has properties that are different from any other star and, in some ways, make it more similar to a cold, giant exoplanet.
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    By studying the effects of spaceflight on a bacterium from Earth, scientists are gaining a better understanding of how infectious disease occurs in space. The research could improve the health of patients here on Earth as well as astronauts.
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    A new microscopic 'cloak' could change the way that scientists capture images of bacteria and other cells. The new technology could help uncover new discoveries about life at the cellular level.
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    A new study shows that quartz plays a key role in initiating the chain events that cause Earth's surface to crack, wrinkle, fold and stretch. The findings could help geologists understand the movements of tectonic plates and their effects on the environment of Earth.
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    Systems biology studies how living organisms emerge from interactions of the individual elements that compose cells. The field is just beginning to come to prominence, but could provide important advances in understanding life's origins.
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  • MESSENGER Begins Historic Orbit around Mercury
    NASA's MESSENGER probe has become the first spacecraft to enter into orbit around the planet Mercury. Studying Mercury will help astrobiologists understand the nature of small, rocky planets and the conditions that lead to habitability on such worlds.
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    A new theory predicts that the Large Hadron Collider could be the first machine capable of causing matter to travel backwards in time. The researchers who originated the theory admit it's a 'long shot', but it still fits within the laws of physics.
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