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NASA has big hopes for virtual reality technology. The agency is developing a suite of virtual reality environments at Goddard Spaceflight Center in Maryland, that could be used for everything from geological research to repairing orbiting satellites.

One displays fiery ejections from the Sun. In another, scientists can watch magnetic fields pulse around the earth. A virtual rendering of an ancient lava tube in Idaho makes scientists feel like they're standing at the bottom of an actual cave.

When President Trump declared the opioid epidemic a public health emergency, it came with a regulatory change intended to make it easier for people to get care. Doctors are now allowed to prescribe addiction medicine virtually, without ever seeing the patient in person.

In Indiana, this kind of virtual visit has been legal since early 2017. So I called about a dozen addiction specialists in Indiana to find out how it was going. But no one had heard of doctors using telemedicine for opioid addiction treatment until I ran across Dr. Jay Joshi.

When was the last time you picked up a book and really looked at how it was made: the typeface, the feel of the paper, the way the words look on the page? Today, when people can read on their phones, some books never even make it to paper.

Once, bookmaking was an art as refined and distinct as the writing it presents. And in some places, like Larkspur Press in Kentucky, it still is.

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Now, some big news for "Harry Potter" fans. The first book of the series, "Harry Potter And The Sorcerer's Stone," has been translated into its 80th language, and it comes out today. What's that language? Well, see if you can guess.

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Every year between Thanksgiving and Christmas, Hollywood offers up lots of brightly wrapped presents - kid flicks, awards contenders, blockbuster wannabes. And around this time every year, we check in with movie critic Bob Mondello for his holiday movie preview.

President Trump has never been shy about promoting his businesses.

Even at a press conference after the racially tinged violence in Charlottesville, Va., he paused for a product placement:

"Charlottesville is a great place that's been very badly hurt over the last couple of days. I own, I own actually one of the largest wineries in the United States. It's in Charlottesville."

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In the Christmas classic "It's A Wonderful Life," the young hero, George Bailey, is just dying to leave his hometown.

(SOUNDBITE OF FILM, "IT'S A WONDERFUL LIFE")

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