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In Hawaii, a battle is going on over the future of a mountaintop. Native Hawaiians say it's sacred ground, while astronomers say it's the best place in the world to build a massive, 18-story telescope.

This is not simply a story of religion versus science. Activists consider the construction of a giant telescope on the island of Hawaii to be a desecration of their sacred land.

Most people can't imagine living without smartphones or the Internet, let alone without electricity. But even today — even in the United States — there are still people who live without lights and refrigeration. Many are Native Americans living on tribal reservations.

For many, electricity is a luxury; it can even be magical. Derrick Terry remembers the first winter when there were lights on at his grandmother's house.

The Affordable Care Act requires all Americans to get health insurance or pay a penalty. To help coax people to buy a health plan, the federal government now subsidizes premiums for millions of Americans.

National Guard Seeks New Mission After War

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NPR — along with seven public radio stations around the country — is chronicling the lives of America's troops where they live. We're calling the project "Back at Base." This is the first of four reports this week about the National Guard.

The Army spent billions of dollars getting the National Guard ready for the wars in Iraq and Afghanistan. But now that the money has been spent and troops are coming home, there are questions about the Guard's mission.

The U.S. Navy has dispatched an aircraft carrier to waters off the coast of Yemen.

As NPR's Jackie Northam reports, the vessels are joining others in the region in an increasing show of force. She filed this report for our Newscast unit:

"The U.S. Navy says it's deploying the USS Theodore Roosevelt and the guided-missile cruiser Normandy to the Gulf of Aden to ensure the vital shipping lanes in the volatile region remain open and safe.

Fifty years ago this week, a chemist in what is now Silicon Valley published a paper that set the groundwork for the digital revolution.

You may never have heard of Moore's law, but it has a lot do with why you will pay about the same price for your next computer, smartphone or tablet, even though it will be faster and have better screen resolution than the last one.

In 2009, I was among the scrum of reporters covering the controversial advice from the U.S. Preventive Services Task Force that women in their 40s think twice about regular mammograms. The task force pointed out that the net benefits in younger women were small and said women should weigh the pros and cons of screening before making a decision.

An Argentine prosecutor moved on Monday to dismiss accusations leveled against President Cristina Fernández de Kirchner by the late prosecutor Alberto Nisman.

If you remember, right before he was found dead in his home, Nisman was about to tell lawmakers that he wanted to charge Kirchner for allegedly thwarting an investigation into the deadly 1994 bombing of a Jewish center in Buenos Aires.

"They're running a little late," chides an elderly gentleman, tapping his watch at 12:02 p.m. He's come to this farm near the Danish city of Ikast, along with about 1,500 others, to celebrate what has become something of a national holiday in Denmark. It's the Sunday in mid-April when thousands of organic dairy cows at 75 farms across the country are released into the green fields of spring. At exactly 12 noon. Eh hem.

Ah, but here they come!

Saudi airstrikes in Yemen began almost a month ago, targeting rebels who have taken over much of the country.

Internationally, there are concerns about increasing casualties and questions about the strategy in the Saudi operation, which is receiving help from the U.S., among others.

But at home in the kingdom, the war has sparked a patriotic fervor that's noticeable just about everywhere you turn.

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