For most of us, plague is something that maybe we read about in history books. In the 14th Century, it wiped out half of Europe's population. But the bacteria is busy killing wildlife now in the American West. By studying small mammals scientists have learned that plague is far more pervasive a killer than anyone thought.
A NASA mission to the moon has completed the first high-bandwidth space-to-ground communication using a laser. This is a big upgrade from the radio systems now in use and could potentially revolutionize deep-space communication.
The agency still doesn't know what's inside jerkies, tenders and strips that have sickened thousands of dogs and killed hundreds. An ongoing investigation is focused on treats imported from China. Pet owners should watch for loss of appetite, listlessness and vomiting.
Fruits and vegetables are undeniably important to a healthful diet. But there's another side to some of these plants that, thankfully, most people never see: the tiny amounts of toxin within them. Lucky for us, healthy human bodies are remarkably good at filtering out toxins from everyday foods.
The federal government finally has a plan for winters at Yellowstone National Park that both fans and foes of snowmobiles say they can live with. Within two years, only the cleanest and quietest of the vehicles will be allowed inside the park.
On Tuesday night PBS' Frontline will investigate how decades of antibiotic overuse has led to the emergence of drug-resistant bacteria. Journalist David Hoffman says that understanding and fighting these bacteria should be a national priority. "A simple scrape on the playground could be fatal," he says.
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