New research reveals that the Archean era - a formative time for early life from 3.8 billion years ago to 2.5 billion years ago - experienced far more major asteroid impacts than had been previously thought, with a few impacts perhaps even rivaling those that produced the largest craters on the Moon...
From an anatomical point of view, a normal, non-pathological eye is known as an emmetropic eye, and has been studied very little until now in comparison with myopic and hypermetropic eyes. The results show that healthy emmetropic women have a wider pupil diameter than men.
Despite widespread belief to the contrary, as few as 6 percent of women experience cancer-related persistent fatigue a year after undergoing treatment for breast cancer, a new study has found.
In response to SpaceX's announcement that it has delayed launch of its Falcon 9 rocket and Dragon spacecraft from April 30 to May 7, NASA issued the following statement from Associate Administrator for Human Exploration and Operations William Gerstenmaier:
Advertisers and public health officials may be able to access hidden wisdom in the brain to more effectively sell their products and promote health and safety, UCLA neuroscientists report in the first study to use brain data to predict how large populations will respond to advertisements.
Some of the oldest galaxies in the Universe have three times more stellar mass, and so many more stars, than all current models of galaxy evolution predict.
While working on a research sailboat gliding over glassy seas in the Pacific Ocean, oceanographer Giora Proskurowski noticed something new: The water was littered with confetti-size pieces of plastic debris, until the moment the wind picked up and most of the particles disappeared.
Environmental advocacy group Greenpeace said on Tuesday that an investigation it had conducted found tea bags sold in China by Unilever's Lipton brand contained unsafe levels of pesticide residue, though Unilever said the product was safe and to standard.
A new biotech corn developed by Dow AgroSciences could answer the prayers of U.S. farmers plagued by a fierce epidemic of super-weeds. Or it could trigger a flood of dangerous chemicals that may make weeds even more resistant and damage other important U.S. crops.
The 2012 Atlantic hurricane season is projected to be less active than in recent years with 11 tropical storms, six of which will intensify into hurricanes, U.S. private forecaster Weather Services International said on Wednesday.
Scientists have called for a radical rethink of our relationship with the planet to head off what they warn could be economic and environmental catastrophe.
The discovery this week of the fourth U.S. case of mad cow disease was one of two things for food safety experts: a validation of a decade-long focused surveillance regime or a lucky break that highlights the need to revisit previously scrapped efforts for more comprehensive surveillance.
