Northern lights!

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Photo credit: Hannele Luhtasela-El ShowkEarly on the morning of March 15th, there was a massive explosion on the surface of the sun.  Magnetic field lines came together and reconnected, releasing immense amounts of energy in a coronal mass ejection which electrically charged particles hurtling out into space.  Fortunately, the CME was on the Earthward face of the sun.  Better still, it seemed to be directed straight at us.
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Skybugs: ecosystems above and below

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Archipelago skyI’ve already written several times about the bacteria in the clouds and what they do up there; now, a new study from the Georgia Institue of Technology in Atlanta has described the communities formed by the bugs in the sky.  In a paper published in the journal PNAS, the researchers detailed the communities of skybugs and how their composition is affected by storms, giving us a better understanding of life in the sky. Not only might this help us better understand atmospheric chemistry, but it may also shed further light on how microbes spread, which could impact the dynamics of everything from ecosystems to diseases.
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Rats with (not quite) telepathy

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BeermanTen years ago,  Professor Miguel Nicolelis and his team at Duke University made history.  They implanted electrodes — sensors — into a monkey’s brain and trained her to control a robotic arm with her thoughts. That may sound like the stuff of science-fiction, but his latest work is even more incredible.  In a paper recently published in Scientific Reports, Professor Nicolelis and his team used similar technology to enable a pair of rats to communicate — one brain to another — even when they were a continent apart.  If you’ve read some of the news coverage of this story, you may have gotten the idea that it’s some kind of telepathy, mind control or mind meld. It’s not, but the truth, though more down-to-earth, is no less exciting. Continue reading

Words of science: interstitial

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Like many other fields, science has its own style of communication full of specific jargon and guided by unwritten rules.  Most of the posts on this blog focus on breaching this barrier to the public’s understanding and appreciation of science.  In this series, I’d like to take another approach by highlighting scientific words which have escaped the confines of jargon to reach a broader appeal because of their sound or their evocative power as metaphors.  Today’s word is interstitial. [Previous words of science were petrichoralluvium, nychthemeron, and crepuscular.]
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What makes our intelligence heritable?

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English: Thinking, bright idea.A study from the University of Edinburgh claims to have found the basis of our intelligence in thousands of genes scattered throughout our genome. Although the discovery was made possible by a new statistical method and modern sequencing technology, how the results are interpreted hinges upon a century-old debate about what intelligence is and how we measure it. Will we ever be able to measure something so indefinable or discover the genes behind it? Continue reading

New targets for HIV therapy

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HIV (small green spheres) budding from a cultured cell (in blue). (Photo credit: CDC)In a pair of studies published last year, researchers across Europe used computer simulations to make major advances in our understanding of HIV. Taking advantage of distributed computing networks, they simulated key processes and molecular interactions in the life cycle of the virus, identifying new targets for drug therapy. Continue reading