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The channel promises to air an episode featuring a man in a protective suit who is swallowed alive by a giant green anaconda.

A wildfire in Yosemite National Park is threatening a grove of some of the oldest trees in the world.

Freeman Hrabowski was named one of TIME magazine's "100 Most Influential People in the World," earlier this year. He heads the University of Maryland, Baltimore County, and helped transform the school into one of the country's top institutions in graduating students of color in science, math and engineering. He talks with host Michel Martin.

Cold, alone and at the bottom of the world. We’ll hear the stories of the men who’ve sought to walk, unaided, across Antarctica.

Last year, China overtook the U.S. as home of the world's fastest supercomputer. That lasted only six months, but generated intense national pride. Will the much-vaunted program able to live up to Beijing's high expectations?

Last year, China overtook the U.S. as home of the world's fastest supercomputer. That lasted only six months, but generated intense national pride. Will the much-vaunted program able to live up to Beijing's high expectations?

Companies in San Francisco pay six-figure salaries to entry-level tech workers. But a public university there is laying off some of its own IT staff and sending the jobs to a contractor in India.

The Egyptian military operation to destroy most of the tunnels used to smuggle goods into neighboring Gaza has led to a shortage of cheap fuel and building materials. It also has led to more sewage flowing into the sea. Change is afoot, however, for the first time in six years.

Federal health officials have lifted the pause on use of the Johnson & Johnson vaccine. States can resume distributing it, now with a warning about rare complications involving blood clots.

Researchers are testing exercise in people at high risk for Alzheimer's. The goal of a federally funded study is to learn whether aerobic physical activity can protect the brain.