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The agency says some 480,000 diesel-powered Volkswagens have sophisticated software that detects emissions testing — and "turns full emissions controls on only during the test."

Call it the stock market of politics. A new trading market allows people to essentially place bets on who will win a debate, get the most speaking time and more. And it walks a fine legal line.

After Chinese scientists announced in April that they had edited the genes in human embryos, many researchers said it shouldn't be done. Scientists in London say they want to do it for research only.

President Obama met with the three Americans credited with stopping an alleged terrorist attack on a Paris-bound train in the Oval Office to honor them for their actions.

NPR has learned that 16 aircraft — including four attack jets and as many attack helicopters — have landed in Syria at a forward operating base at Latakia.

Search crews continue to look for a missing hiker in Zion National Park and a 6-year-old boy in Hildale, a town near the Arizona border. Two bodies were recovered Wednesday.

The changes that will take effect Monday allow U.S. companies to provide Internet and communications services in Cuba. Air and cruise ship travel will also be easier.

In this solar system, Jupiter is about the size of a miniature watermelon. The sun is a small weather balloon. And the orbits, traced onto a dry lakebed, are huge.