NASA is facing a tight budget and wants to wrap up the Chandra X-ray Observatory, but astronomers don't want to see the 25-year-old X-ray space telescope mission go.
A fossil of an armadillo-like mammal appears to bear cut marks from butchering by humans, suggesting people were living in South America at least 20,000 years ago, even earlier than once thought.
Canadian-American activist Paul Watson was en route to the North Pacific on a mission to intercept a new Japanese whaling ship when police boarded his vessel.
It's the 16th Bat-a-thon in Belize. Researchers think the flying mammals can teach us about warding off pathogens and managing diabetes. They trap bats in nets, draw blood ... but no bats are harmed.
So much ice is melting at the Earth's poles that it's affecting the rotation of the planet, scientists say. Its spin is slowing down slightly, causing days to get longer.
Scientists scanned the brains of people who took psilocybin, including a member of the research team. The scans showed how the drug disrupts key networks, potentially enhancing brain plasticity.
An estimated 10 to 20 tons of fish died on the Piracicaba River, prosecutors said. An initial investigation points to an "irregular discharge of wastewater" from a sugar and ethanol plant.
A study finds that carrion crows can be taught to count and make vocalizations that indicate the number counted, much in the same way that human toddlers do.
Cal Fire Chief Joe Tyler said the agency and its partners are equipped with with fire trucks, bulldozers, and newly introduced Blackhawk helicopters that can fly at night.
For decades, tianeptine was used to treat depression, even though no one knew how it worked. But it turns out it's a type of opioid, and the U.S. is facing a spike in abuse of "gas station heroin."
As part of a local conservation effort, beehives dot a section of coastline in Mombasa to try to deter people who chop mangroves for firewood or home construction.
Swing state voters are seeing ads warning them about a federal ban on their gas-powered vehicles. But there is no such ban, even as candidates campaign on it.