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It's not exactly close — 25 trillion miles from Earth, say the scientists who spotted it. But that might be near enough for further exploration. It's about Earth's size, with mild temperatures.

Earth's changing climate has made the quest to understand wave behavior more important than ever, scientists say. Rising seas, storm surge and dune and reef erosion all shape Florida's Gulf Coast.

NPR's Kelly McEvers talks with professor Christian Herbst, who was part of the team that released a study that explores the science behind Freddie Mercury's amazing voice.

After digging down just a foot, a modern-day prospector found a 9-pound chunk of gold in Australia. In the Philippines, a fisherman kept secret his 75-pound pearl for 10 years.

Donald Trump courted hard-liners on immigration in the primary campaign. But he signaled Wednesday night he'd be in favor of a path to legalization for some immigrants in the U.S. illegally.

Cordero Ducksworth says he barely remembers his father, Roman, who died in 1962. And he didn't learn the circumstances of his death for almost 30 years. Now, he's fighting for justice.

Hardier than corn, this ancient grain has a subtle, nutty flavor and is full of nutrients. But for most Americans, amaranth is still obscure. Researchers in Tennessee hope to change that.

Two Florida hospitals treating survivors of the mass shooting will be looking for other sources of payment — or waiving fees altogether — instead of making victims pay for their treatment.

Luke comes to us today from the mountains of northern Colorado. For the past six years he and Larry Large have outfitted elk and bear hunts here…

"From the start, Donald Trump has built his campaign on prejudice and paranoia," Clinton said Thursday in Reno, Nev.