News from NPR

Interest in "Properties of Expanding Universes" is at an all-time high: Stephen Hawking's doctoral thesis of that name has crashed Cambridge University's open-access repository on the first day the document was posted online.

What counts as dietary fiber? That's up for debate.

The Food and Drug Administration is reviewing 26 ingredients that food manufacturers use to bulk up the fiber content of processed foods to determine if there's a health benefit.

If you're a nutrition-label reader, the list includes some familiar-ish sounding ingredients — such as inulin, which is often sourced from chicory root.

Secretary of State Rex Tillerson spent an unannounced visit to Afghanistan outlining elements of a peace strategy he says the Trump administration will commit to, on a conditional basis.

"It's not an unlimited commitment. He's also made it clear it's not a blank-check commitment," Tillerson told reporters who had landed with him at Bagram Air Force Base on Monday.

A timber company with deep Arkansas ties and a headquarters in El Dorado is being acquired in a $1.18-billion deal by Potlatch Corporation. The Spokane, Washington-based operation, now to be known as PotlatchDeltic Corporation, will have 1,500 employees combined and own 2-million acres of timberland. Deltic’s contribution is 530,000 acres in Arkansas and Louisiana.

Potlatch CEO Mike Covey will stay at the helm of the combined company. He told investors on Monday that he expects more activity out of south Arkansas forests and mills.

Here's something that may sound like a contradiction in terms: low-fat pigs.

But that's exactly what Chinese scientists have created using new genetic engineering techniques.

In a paper published Monday in the Proceedings of the National Academy of Sciences, the scientists report that they have created 12 healthy pigs with about 24 percent less body fat than normal pigs.

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