Analysis of polar bear DNA shows they’re an ancient species with a…

A scan of polar bear DNA has shown that polar bears came into existence far earlier than previously assumed. Working with fossils alone, scientists had thought that polar bears, after intermingling with brown bears, made their first snowy white appearance anywhere between 60,000 to 600,000 years ago. But a genetic… » 7/24/12 1:20pm 7/24/12 1:20pm

Human urine causes high levels of caffeine in Pacific coastal waters

If there was ever a clearer sign that we sure do love our coffee, it's got to be this: A new study from Portland State University has found elevated levels of caffeine at several sites in Pacific waters, off the coast of Oregon. The researchers speculate that, while wastewater treatment plants are effective at… » 7/23/12 12:30pm 7/23/12 12:30pm

What’s on the menu for Mars-bound astronauts?

While we have a pretty good idea what the first humans will eat on Mars, we're a little less certain about what their meals will look like on the way there. Alas, because there are no drive-throughs between Earth and the red planet, food scientists are having to come up with innovative, healthy, and tasty food options … » 7/17/12 5:00pm 7/17/12 5:00pm

Mind-reading helmet could help interrogators distinguish friend from…

Criminals and captured enemy combatants who pride themselves on their ability to withstand tough interrogations could be in for a bit of a surprise. U.S. based company Veritas Scientific is developing an EEG helmet that will pick up on the unique signatures emitted by a person's brain, allowing interrogators to pick… » 7/11/12 10:41am 7/11/12 10:41am