Melissa Block

At the Winter Olympics, which get underway next month in Pyeongchang, South Korea, some of the most blistering speeds will come in the three high-adrenaline sliding sports, where top athletes zip on the ice at about 90 miles an hour.

There's bobsled, kind of like a downhill race car on steel runners.

In the luge, athletes lie back on a sled, going down the track feet first and face up.

And then there's skeleton, where racers go head-first, face-down, in a blink-and-you-miss-it blur of speed.

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ROBERT SIEGEL, HOST:

A moment now to remember one of rock music's most-beloved musicians.

(SOUNDBITE OF SONG, "AMERICAN GIRL")

TOM PETTY AND THE HEARTBREAKERS: (Singing) She was an American girl.

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