Brazil's surge in microcephaly cases has been widely blamed on the Zika virus. Now some claim it might be caused by pesticides, or even vaccines. We asked an NIH expert to sort out what we know from what we don't.
Scientists say a massive ice sheet in Antarctica is starting to collapse. It's not going to slide into the ocean over night, but rather over centuries. Still, it will fall, scientists say. It's gotten to the point it can't be stopped — and that means rising sea levels.
Electronic cigarette ads are on TV. New York City is restricting e-smoking in the same way as it restricts tobacco smoking. And government data indicates that 10 percent of high school students have tried e-cigs. Now, researchers are racing to figure out how they will impact public health.
Sharon Hillier didn't start out wanting to be the voice of, well, the vagina. But when she discovered just how off-base men who studied women's reproductive issues were, she felt she had to do something.
Japanese researchers say they've found a species of algae that could help decontaminate radioactive water from the crippled Fukushima nuclear power plant. But they say the plant's owners don't seem very interested in the idea.
The discovery of two giant holes in the ground in far northern Russia is raising all kinds of speculation about their origin. No one yet knows for sure how they were formed, but a leading scientist is pointing to an ever-more usual suspect—climate change.