Sun

  • To deal with the faint young Sun paradox, researchers are taking a fresh look at an old idea: that the Sun started out larger and more luminous than we thought.
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  • Roughly 5 billion years from now, the Sun will begin to swell as a red giant. But life on Earth will feel the effects of an aging Sun long before then. What can we do to survive?
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  • A coronal mass ejection from the Sun could deliver a glancing blow to Earth's magnetic field this week.
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  • A new study suggests that scientists may soon be able to predict sunspots before they're visible to the human eye. Sunspots are the starting point for coronal mass ejections - powerful bursts of energy that sometimes hit the Earth.
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  • The first nitrogen and oxygen isotopic measurements of the Sun demonstrate that they are very different than the same elements on Earth. The findings come from successful results from NASA's Genesis mission.
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  • The first nitrogen and oxygen isotopic measurements of the Sun demonstrate that they are very different than the same elements on Earth. The findings come from successful results from NASA's Genesis mission.
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  • A missing jet stream, fading spots, and slower activity near the poles say that our sun is heading for a rest period even as it is acting up for the first time in years. The Sun plays a major role in maintaining the habitability of
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  • A missing jet stream, fading spots, and slower activity near the poles say that our sun is heading for a rest period even as it is acting up for the first time in years. The Sun plays a major role in maintaining the habitability of
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  • The Sun is Having a Blast
    On June 7, 2011, the Sun unleashed a medium-sized solar flare, minor radiation storm and a spectacular coronal mass ejection. Soon, the ejection will deliver a glancing blow to Earth's magnetic field.
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  • In 2008, sunspots all but vanished and the Sun became eerily quiet. It was the deepest solar minimum in nearly a century. Now, after three long years, the Sun is becoming active once again. Life on Earth is intricately linked to solar activity. Studying the
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