Dec 24 Monarch butterflies flutter around the globe By Larisa Epatko Monarch butterflies are known to flit and float across North America, but they live on other continents as well. Take a look at this regal butterfly from around the world in our slideshow. Continue reading
Dec 23 The bug that ate Christmas The balsam wolly adelgid is an invasive species known to kill popular fir tree species. Image by the Forest Service of the USDA. Wild populations of Canaan and Fraser firs -- some of the nation's most popular and… Continue reading
Dec 23 Greece offers free electricity in bid to stem soaring smog levels Greece has started offering free electricity to many low-income families in an effort to curb the use of firewood, which officials say has caused "alarming levels" of air pollution. In recent weeks, pollution levels have soared in the capital… Continue reading
Dec 21 Researchers measure increasing sexualization of images in magazines By Saskia de Melker Research reveals that sexual imagery has become more prevalent in popular culture during the last four decades. Are these images changing how we perceive women and men?… Continue reading
Dec 20 Watch Can memory video games deliver on brain-boosting claims? A new breed of video games are designed to exercise aging brains and improve players' attention, speed and memory. But critics say the claims made by developers are not supported with evidence. Could these mental workouts make a difference? Special… Continue watching
Dec 18 Watch Tricking the brain with transformative virtual reality Want to have a just-like-real-life fantasy experience without leaving your living room? Virtual reality technology is already employed by certain industries, but economics correspondent Paul Solman considers the variety of applications it could have in the consumer market in the… Continue watching
Dec 18 Climate models turn the weather in Tolkien's 'Hobbit' into science By Rebecca Jacobson, Inside Energy Gandalf the Grey, played by Ian McKellen, travels J.R.R. Tolkien's Middle Earth in the film "The Hobbit: An Unexpected Journey." It turns out Tolkien was quite the climatologist when it came to modeling his mythical land. Photo by… Continue reading
Dec 17 Possible diamonds found in Antarctica Deposits of a type of rock that can contain diamonds were found in eastern Antarctica. Still by PBS NewsHour A new type of "ice" has been found in Antarctica -- the diamond variety. Or, at least the type… Continue reading
Dec 17 Tinnitus discovery may lead to new treatment By News Desk NewsHour science correspondent Miles O'Brien reports on the science behind tinnitus and the search for a cure. Fifty million Americans experience chronic ringing in the ears, a condition known as tinnitus. But new research from the University of Michigan… Continue reading
Dec 16 Heavy marijuana use may cause poor memory and abnormal brain structure, study says By News Desk Daily marijuana use has a measurable effect on the brain, a new study finds. Photo by Dean J. Koepfler/Tacoma News Tribune/MCT via Getty Images. Teenagers who smoked marijuana daily for three years performed poorly on memory tasks and showed… Continue reading