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The researchers looked at how frequently 'mood' words were used through time in a database of more than five million digitised books provided by Google.

At the end of the last ice age, a population of polar bears was stranded by the receding ice on a few islands in southeastern Alaska. Male brown bears swam across to the islands from the Alaskan mainland and mated with female polar bears, eventually transforming the polar bear population into brown bears.

Apple has confirmed it cannot fix a bug that has woken thousands of iPhone owners every night since January 1.The phone's 'do not disturb' feature is designed to silence the handset during set hours to prevent any disturbance while users sleep or if they are in a meeting.

Astronomers have used the ALMA telescope to get their first glimpse of a fascinating stage of star formation in which planets forming around a young star are helping the star itself continue to grow, resolving a longstanding mystery.

How young star and planets grow simultaneously

sciencedaily.com

Scientists from The Scripps Research Institute and Sea Lane Biotechnologies have solved the co-crystal structure of a human antibody that can neutralize influenza viruses in a unique way.

Computers may be getting faster every year, but those advances in computer speed could be dwarfed if their 1's and 0's were represented by bursts of light, instead of electricity.

The Indo-European languages belong to one of the widest spread language families of the world. For the last two millenia, many of these languages have been written, and their history is relatively clear.

Researchers at King's College London, in collaboration with European research institutes ICFO (Barcelona) and AMOLF (Amsterdam), have succeeded in mapping how light behaves in complex photonic materials inspired by nature, like iridescent butterfly wings.

A scientist from the Senckenberg Research Institute in Frankfurt has discovered the first eyeless huntsman spider in the world. The accompanying study has been published by the scientific journal Zootaxa.

The 14 years of wildlife studies in and around Madagascar's Ranomafana National Park by Sarah Karpanty, associate professor of wildlife conservation at Virginia Tech's College of Natural Resources and Environment, and her students are summarily part of a paper on biodiversity published July 25 by Nature's Advanced Online Publication and coming out soon in print.

Like a white blanket, Tropical Storm Debby's clouds covered the entire state of Florida in a NASA satellite image.

Wasteland or "brownfield" areas are vital but overlooked habitats for UK wildlife, according to the charity Butterfly Conservation.

Visual and auditory stimuli that elicit high levels of engagement and emotional response can be linked to reliable patterns of brain activity, a team of researchers from The City College of New York and Columbia University reports.

Venus (black spot on the left) transits across the face of the sun, as seen in Visakhapatnam on Wednesday. The next transit of Venus is likely to be seen after another 105 years.

College is a time of exploration, transition and habit development. In college, you are working on study habits and absorbing knowledge that may help you with your future career. Make sure you are developing financial habits that will best help you once you graduate, too.

A new species of photosynthetic bacterium has come to light: it is able to control the formation of minerals (calcium, magnesium, barium and strontium carbonates) within its own organism.

It’s no secret that the relationship between busy working mothers and the nannies who help to care for their children can be a bit strained

The plague, bacterial dysentery, and cholera have one thing in common: These dangerous diseases are caused by bacteria which infect their host using a sophisticated injection apparatus.

Black carbon aerosols and tropospheric ozone, both humanmade pollutants emitted predominantly in the Northern Hemisphere's low- to mid-latitudes, are most likely pushing the boundary of the tropics further poleward in that hemisphere, new research by a team of scientists shows.

Poor Phineas Gage. In 1848, the supervisor for the Rutland and Burlington Railroad in Vermont was using a 13-pound, 3-foot-7-inch rod to pack blasting powder into a rock when he triggered an explosion that drove the rod through his left cheek and out of the top of his head. As reported at the time, the rod was later found, "smeared with blood and brains."

In May 2010, the ash cloud from the Icelandic volcano Eyjafjallajökull reached the Iberian Peninsula and brought airports to a halt all over Europe. At the time, scientists followed its paths using satellites, laser detectors, sun photometers and other instruments.

Detective astronomers have discovered at least one unseen alien planet, and possibly another, around a distant star by observing the odd behavior of a planet already known to orbit the same star.

Hidden alien planet revealed by its own gravity

msnbc.msn.com

Women who visit beauty clinics for laser hair removal or to tidy up patches of blemished skin are risking permanent blindness or scarring because the industry is almost totally unregulated, experts have warned.

Laser hair removal clinics 'dangerously unregulated' - Telegraph

telegraph.co.uk

Women are increasingly ditching the gym in favour of fresh air exercise, according to a survey. They are taking to parks and playing fields to join group sessions like British Military Fitness and Buggy Fit.

Women ditching gym for great outdoors - Telegraph

telegraph.co.uk

Children who wake up at night and are allowed to fall back asleep in their parents' bed re less likely to be overweight than kids put back into their own bed, a new study says.

Kids who sleep with parents are less overweight

health24.com