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MICHEL MARTIN, HOST:

And now it's time for Faith Matters. That's the part of the program where we talk about matters of faith and spirituality, and as you just heard, the Barber Shop guys were talking about the very strange story involving Notre Dame football star Manti Te'o. He's in the news because the story of his girlfriend's tragic death and the girlfriend herself turned out to be a hoax.

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MICHEL MARTIN, HOST:

I'm Michel Martin and this is TELL ME MORE from NPR News. Coming up, ahead of Martin Luther King Jr.'s birthday and inauguration date both being observed on Monday, we will hear about some of the less well known speeches made by the Reverend Martin Luther King Jr.. And some of the less well known bits of history around presidential inaugurations. That will all be later in the program.

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FLORA LICHTMAN, HOST:

This is SCIENCE FRIDAY. I'm Flora Lichtman. Up next: the man who wrote the book - well, the books, rather - on data visualization. He was doing infographics before everybody was doing infographics. Back in the '80s, data scientist Edward Tufte remortgaged his house so he could start a company and self-publish his first book, "The Visual Display of Quantitative Information." Sound like a snoozer? Well, that book, along with his others on the same topic, have sold more than a million-and-a-half copies.

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FLORA LICHTMAN, HOST:

This is SCIENCE FRIDAY. I'm Flora Lichtman, filling in for Ira Flatow today. Solar wind, geothermal - now there's a new renewable energy source to add to that list. It's free, completely reliable and totally unlimited: the force of gravity. Two British designers have invented a lamp that runs on gravity alone. Their GravityLight - yes, that's its name, aptly named - uses, you guessed it, the pull of gravity on a weight to generate up to 30 minutes of light.

The remains of Urooj Khan, the Chicago man who last July died one day after his $425,000 check from the Illinois lottery was cut, were exhumed today, the Chicago Tribune reports.

A masked assailant threw acid into the face of the Bolshoi ballet's artistic director on Thursday in Moscow in what may have been a "reprisal for his selection of dancers in starring roles at the famed Russian company," The Associated Press reports.

President Obama's proposed renewal of a ban on assault-style weapons is expected to be based on the legislation approved by Congress in 1994 that expired 10 years later.

But when the first assault weapons ban was approved — outlawing 19 specific weapons — it was a very different time, and Congress was a very different place.

Notre Dame football star Manti Te'o "perpetuated the heartbreaking story" of a girlfriend's death after he supposedly had learned he was the victim of a hoax and that she never existed, The Associated Press writes.

After Part 1 of cyclist Lance Armstrong's confession about doping aired Thursday night on the Oprah Winfrey Network, the Livestrong cancer charity he helped found released a statement that says, in part:

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RENEE MONTAGNE, HOST:

Good morning. I'm Renee Montagne. An amateur prospector in Australia thought he'd stumbled on a car hood. It turned out to be a giant gold nugget shaped like a goldfish. The owner of the local gold shop told the Herald newspaper that if the anonymous prospector was silly enough to melt it down it would be worth nearly $300,000.

Unlikely, since its size and shape make it so rare. The gold will be worth far more to a museum or collector. It's MORNING EDITION. Transcript provided by NPR, Copyright National Public Radio.