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Future Studies Will Extend Census of Middleweight Black Holes

Editor's note: In her article, " Goldilocks Black Holes ," Jenny E. Greene discusses the search for black holes with masses ranging from roughly 1,000 suns to a million suns--middleweights on the cosmic scale.

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B-list celebs hit the high seas

Now is your chance to sign up for the just-announced Kate Gosselin cruise and sail away with the two-time reality-TV star, former “Dancing with the Stars” competitor and celebrity blogger for CouponCabin.com.

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Haiti to Mark 2 Years After Catastrophic Quake

By Kevin Gray and Joseph Guyler Delva PORT-AU-PRINCE (Reuters) - Haiti will commemorate the two-year anniversary on Thursday of a devastating earthquake that ravaged the Western Hemisphere's poorest country as it struggles to rebuild and hundreds of thousands of quake victims remain homeless. [More]

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Salt Boosts Blood Pressure, but via Adrenalin

People with high blood pressure are often told to watch the salt. And it’s long been thought that hypertension related to excess salt is caused by the salt increasing the volume of the blood. Which in turn puts added pressure on the blood vessel walls

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Three Tiny Exoplanets Suggest Solar System Not So Special

Adding to its already long roster of firsts , NASA's Kepler spacecraft has found the three smallest extrasolar planets ever detected -- all of them smaller than Earth, and the most diminutive no larger than Mars. The newly discovered trio forms a miniature planetary system orbiting a cool, dim red dwarf star called KOI-961. [More]

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2012 Google Science Fair Begins: What’s Your Question?

“As any adult knows, there’s one thing that any kid can do better than any grown up: ask questions. In fact, many studies have actually shown how kids are born scientists. If you don’t believe me, watch a baby first accidentally knock something off her high chair and onto the floor.

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Marathoners’ cardiac arrest risk quite low

According to a new study examining 10 years of marathon and half-marathon races in the U.S., the risk of cardiac arrest in such long distance races is actually quite rare

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