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		The Sun's Sneaky Variability It might not be obvious to the naked eye, but the sun is a variable star. A sensor slated for launch onboard the Solar Dynamics Observatory will probe the sun's "sneaky variability" with better time and spectral resolution than ever before. + Read More + Listen to Story + en español

		Giant Ribbon Discovered at the Edge of the Solar System NASA's IBEX spacecraft has discovered a vast, glowing ribbon at the edge of the solar system. One mission scientist calls the discovery "shocking" and says theorists are "working like crazy" to explain the finding. + Read More + Listen to Story + en español

		Cosmic Rays Hit Space Age High NASA spacecraft are measuring record-high levels of cosmic rays--a side-effect of the deepest solar minimum in nearly a century. This development could have implications for the amount of shielding astronauts need to take when they explore deep space. + Read More + Listen to Story + en español

		Are Sunspots Disappearing? The sun is in the pits of the deepest solar minimum in a century. Weeks and sometimes whole months go by without even a single tiny sunspot. The quiet has prompted some observers to wonder, are sunspots disappearing? + Read More + Listen to Story + en español

		Honey, I Blew Up the Tokamak NASA is planning a daring new mission to investigate the Universe's favorite way of making things explode. Unlocking the secrets of "magnetic reconnection" could help alleviate the energy crisis on Earth. + Read More + Listen to Story + en español

		What Hit Jupiter? Two weeks after something slammed into Jupiter, creating a cloud of debris that is still easy to see through backyard telescopes, researchers are wondering ... what was the impactor? + Read More + Listen to Story + en español




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	Fake Astronaut Gets Hit by Artificial Solar Flare Researchers are about to subject a fake astronaut complete with blood cells and simulated human tissue to an artificial solar flare. How the unlucky volunteer emerges from the radiation storm will reveal for the first time how much of a threat severe solar flares pose to astronauts en route to the Moon and Mars. + Read More + Listen to Story + en español

	New Solar Cycle Prediction An international panel of experts has issued a new prediction for the solar cycle which takes into account the surprisingly deep solar minimum of 2008-2009. Read today's story to find out when they think solar maximum will return. + Read More + Listen to Story + en español

	New Gamma-Ray Burst Smashes Cosmic Distance Record A gamma-ray burst detected by NASA's Swift satellite has smashed the previous distance record for the most powerful explosions in the Universe. Researchers are calling it 'an incredible find' and a 'true blast from the past.' + Read More + Listen to Story + en español

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