NASA's Dawn mission has reached its destination and is orbiting the dwarf planet Ceres. It's the end of an odyssey to explore an odd, in-between world.
Foods from Fukushima, Japan, are back to pre-accident levels of radiation but people still aren't eating them. One way to ease concerns: a chemical that blocks radioactive cesium from entering plants.
Even at low doses, the potent poison damages organs and causes cancers. Now scientists have found a population high in the Andes Mountains that has adapted to the toxic metal over thousands of years.
Research shows that only 1 in 5 five people takes a break and leaves his desk to eat. Most workers are simply eating at their desks. But creativity can take a big hit without a change of scenery.
The 2.8 million-year-old bone may mark the first human branch in the primate family tree. It wasn't just a bigger brain that marked the shift, scientists say. It was also big changes in the mouth.
Chocolate is increasingly popular and under assault from diseases that infect cocoa plants. Scientists are working to find varieties that will resist diseases and keep the world's sweet tooth happy.
Danish archaeologists have recruited moles to help them dig. By sifting through molehills, they're able to map the location of the fort's buildings buried underground.
Just 10 questions about bad childhood experiences can turn up undiagnosed illness in adults, research suggests. So why don't more doctors ask? Some say they aren't equipped to deal with the answers.
Writing in Science, scientists say the 2.8 million-year-old fossil appears to belong to an individual from the beginning of the ancestral line that led to humans.