Scientists typically believe that dark matter behaves in a simple way: if one clump encounters another, the two interact solely through gravity. However, researchers have published findings which suggest that there’s more involved. They’ve noticed dark matter (the blue lines in the photo above) lagging behind a galaxy due to friction, hinting that there are factors beyond gravity at work. […]
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The Antikythera Mechanism: The original mechanism apparently came out of the Mediterranean as a single encrusted piece. Soon afterward it fractured into three major pieces. Other small pieces have broken off in the interim from cleaning and handling, and still others were found on the sea floor by the Cousteau expedition. Other fragments may still be in storage, undiscovered […]
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Anatoli Brouchkov, a scientist whose curiosity and thirst for knowledge drove him to go beyond the standard protocol of his experimentation by injecting himself with an ancient “Eternal Life” bacteria. In 2009, a 3.5-million-year-old bacteria strain called Bacillus F was discovered deep in the permafrost of Siberia’s Sakha Republic. Scientists later found that mice and fruit flies exposed to the bacteria seemed to […]
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The average human being generates about eight watts of energy with each step, most of which is expended as vibration. It may not sound like much, but take the 30,000 or more people who pass through a major-city subway hub at rush hour, and suddenly you’ve got serious power. That’s usually a problem for architects and engineers, who have to […]
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Scientists have long puzzled over the origins of Earth’s vast oceans. Now, new data from the Rosetta spacecraft appear to have crossed one potential source off the list: comets. Rosetta has been in close orbit around comet 67P/Churyumov- Gerasimenko since August, analyzing its chemical makeup. Among the mission’s goals was to determine if the water locked in the comet’s icy […]
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The species of bacteria that dominate our guts may strongly affect whether we’re thin or fat. Researchers at Washington University collected samples of gut bacteria from pairs of twins in which one was obese and the other thin. Then they transplanted the bacteria into mice. The mice that received the bacteria from the obese twins became obese; the mice that […]
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Stress and depression can take a combined toll on the heart, creating a “psychosocial perfect storm” that dramatically increases the risk of death from heart disease, new research has found. A study involving nearly 4,500 adults with coronary artery disease found those who also suffered from significant stress and depression were nearly 50 percent more likely to die or have […]
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Having a sense of purpose may add years to your life—and the benefit can be realized throughout adulthood. That’s the conclusion of a long-term study that tracked the physical and mental health of more than 6,100 Americans aged 20 to 75. Previous research has shown purposefulness to be one of the strongest predictors of longevity, but this is the first […]
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As the world’s largest land mammals, elephants should suffer one of the highest cancer rates—they simply have far more cells that could potentially mutate and become malignant. But new research reveals that elephants rarely get cancer—and the reason why may help in the search for human treatments. Only about 4.8 percent of elephants die from cancer, compared with up to […]
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For the first time, scientists have caught a glimpse of a black hole ejecting a hot “flare” of matter after devouring a star the size of our sun. The discovery was made thanks to the quick action of of scientists from John Hopkins University, who worked in conjunction with a team from the University of Oxford. Hubble fellow Sjoert van […]
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