This is SCIENCE FRIDAY. I'm Ira Flatow. This is Alzheimer's Awareness Month, in case you didn't know that. Dr. Alois Alzheimer first described a type of dementia that could go on to - that would go on to bear his name - first described that in 1901. Now over a century later, more than five million people in the U.S. are living with Alzheimer's, according to the Alzheimer's Association, and we still are looking for the exact cause and treatment for the disease.
This is SCIENCE FRIDAY. I am Ira Flatow. When we talk about Mars, you know, it's usually about the search for life or water or something like that on the red planet that might be similar to life on earth, right? Is there life on Mars? Was there life on Mars? Was it similar to life on earth? But what if life came from Mars to earth? What if earth was seeded by Martian life forms three billion years ago? It's not a new idea, Martian life forms hitching a ride on a meteorite. But there is a new theory to support it.
This is SCIENCE FRIDAY. I am Ira Flatow. Did you know that trillions of bacteria live in your gut, happily dining on the food you eat? And your bacteria community, well, it's different than mine; everyone has a different community and that is important because as a new study published in Science points out, the specific bacteria you shelter can alter your metabolism. It can help determine your health. How do you get the bacteria in your gut? What connection do they have to our well-being?
Last year, 2012, the Earth experienced a record melt of Arctic ice, torrential rainfall in Australia, and withering droughts in the United States and elsewhere. Scientists are beginning to figure out why. Here's NPR's Richard Harris
Originally published on Tue September 10, 2013 12:52 pm
Here's a bit of news that might make you drop that chicken nugget midbite.
Just before the start of the long holiday weekend last Friday, the U.S. Department of Agriculture quietly announced that it was ending a ban on processed chicken imports from China. The kicker: These products can now be sold in the U.S. without a country-of-origin label.
There's a hole in the sun's corona. But don't worry — that happens from time to time.
"A coronal hole is just a big, dark blotch that we see on the sun in our images," says Dean Pesnell, project scientist for NASA's Solar Dynamics Observatory. "We can only see them from space, because when we look at them [through] a regular telescope, they don't appear."
Cats have come a long way from being animals charged with catching mice to treasured, adorable creatures that snuggle with us in our beds. But this relatively new arrangement is creating issues for cats and the people who live with them.
John Bradshaw has studied the history of domesticated cats and how the relationship between people and cats has changed. He's the author of the new book Cat Sense: How the New Feline Science Can Make You a Better Friend to Your Pet, which is a follow-up to his book Dog Sense.