The birth of massive galaxies, according to galaxy formation theories, begins with the buildup of a dense, compact core that is ablaze with the glow of millions of newly formed stars. Evidence of this early construction phase, however, has eluded astronomers — until now. Astronomers identified a dense galactic core, dubbed "Sparky," using a combination of data from Hubble and Spitzer, other space telescopes, and the W.M. Keck Observatory in Hawaii. Hubble photographed the emerging galaxy as it looked 11 billion years ago, just 3 billion years after the birth of our universe in the big bang.
– Space Telescope Science Institute (STScI)|27-Aug-2014 1:00 PM EDT
By manipulating neural circuits in the brain of mice, scientists have altered the emotional associations of specific memories. The research, led by Howard Hughes Medical Institute investigator Susumu Tonegawa at the Massachusetts Institute of Technology (MIT), reveals that the connections between the part of the brain that stores contextual information about an experience and the part of the brain that stores the emotional memory of that experience are malleable.
– Howard Hughes Medical Institute (HHMI)|27-Aug-2014 1:00 PM EDT
About 400 million years ago a group of fish began exploring land and evolved into tetrapods – today's amphibians, reptiles, birds, and mammals. But just how these ancient fish used their fishy bodies and fins in a terrestrial environment and what evolutionary processes were at play remain scientific mysteries.
– McGill University|27-Aug-2014 1:00 PM EDT
Parents who try to understand their baby's babbling let their infants know they can communicate, which leads to children forming complex sounds and using language more quickly. That’s according to a new study by the University of Iowa and Indiana University.
– University of Iowa |27-Aug-2014 12:05 PM EDT
Due to global warming, scientists say, the chances of the southwestern United States experiencing a decade long drought is at least 50 percent, and the chances of a “megadrought” – one that lasts over 30 years – ranges from 20 to 50 percent over the next century.
– Cornell University|27-Aug-2014 12:05 PM EDT
Fewer men are being diagnosed with and dying from prostate cancer these days. While that is due in part to widespread awareness and better treatment, it is also the result of more judicious screening.
– Penn State Milton S. Hershey Medical Center|27-Aug-2014 12:00 PM EDT
Was Mars — now a cold, dry place — once a warm, wet planet that sustained life? Research underway at the National High Magnetic Field Laboratory may one day answer those questions — and perhaps even help pave the way for future colonization of the Red Planet. By analyzing the chemical clues locked inside an ancient Martian meteorite known as Black Beauty, Florida State University Professor Munir Humayun and an international research team are revealing the story of Mars’ ancient, and sometimes startling, climate history.
– Florida State University|27-Aug-2014 12:00 PM EDT
Younger, College-Educated Consumers More Likely To Use Potentially Unreliable Online Health-Care Information
Consumers are increasingly turning to forums, video-sharing sites, and peer support groups to gather anecdotal health-care information and advice, which may distract them from more reliable and trustworthy sources. New research to be presented at the HFES 2014 Annual Meeting in Chicago studies the characteristics of consumers who use the Internet to collect health-care information.
– Human Factors and Ergonomics Society|27-Aug-2014 12:00 PM EDT
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