A unique mineral trapped inside a unique diamond bolsters the theory that oceans of non-liquid water lurk hundreds of miles below the planet's surface.
The world is full of fascinating stories and The Two-Way tells them. Drawing from NPR correspondents around the world and other news outlets and websites, we look for the best reports. We collect the highlights to give readers a window on the world.
The crisis in Ukraine continues. On Sunday, there's a referendum in Crimea about whether to split from Ukraine and join the Russian Federation.
Republicans say that to get the measure passed new IRS rules that make it harder for tax-exempt groups to veer into politics must be withdrawn.
Malaysia Airlines says it will stop using codes associated with its missing Flight MH370 as a "mark of respect" for the plane's passengers and crew. It's a long-standing industry practice.
U.S. investigators tell The Wall Street Journal that equipment aboard the missing plane was transmitting for four hours after it is thought to have vanished. Malaysian officials say that's not true.
Haredi, a branch of Judaism that shuns modern secular culture, had long been exempt from national service. The bill had been boycotted by the opposition.
Meanwhile, while meeting with the country's interim prime minister, President Obama said the U.S. would not recognize a secession vote scheduled in Crimea.
The search continues, and continues to expand, for Malaysia Airlines Flight 370, which disappeared Saturday while en route from Kuala Lumpur to Beijing. There were 239 people on board.
When a plane crashes, it can take many months or years to find the black box that provides clues to what happened. Just what are these devices, how do they work, and why can they be so hard to find?