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The Vienna transit authority tried out piping four pleasing scents through its trains: green tea, grapefruit, sandalwood and melon. Straphangers said they preferred the air au naturale.

NPR's Sarah McCammon plays the puzzle with Flora Kupferman of San Francisco and puzzlemaster Will Shortz.

For each category, name something beginning with each of the letters T, H, A, N and K. For example, if the category were "U.S. states," you might say Tennessee, Hawaii, Alaska, Nevada and Kentucky.

Every answer is the name of a famous person whose first and last names start with the same consonant or group of consonants. You're given rhymes for the two names. You name the people. For example, if given "cycle four," the answer would be "Michael Moore."

The African tigerfish can apparently leap into the air to catch fast-flying birds as they zoom by. There have been tales about this impressive feat. Now there's video of it.

If you missed any of our kids and technology coverage last week, now you can listen to all the stories in one podcast.

The more red you see on FlightAware.com's graphic, the worse it is for air travelers. The snow and ice storm that's moving up the East Coast has forced airlines to cancel or delay thousands of flights.

Every answer is a made-up, two-word phrase in which the vowel in the first word is a short "e" and the vowel in the second word is a long "o." For example: A place to meditate would be a "zen zone."

A series of animated "explainers" on the rise of fracking, water use in fracking, and the high stakes game of deciding where to drill.

Many Mexicans deal with heartbreak by listening to rancheras, traditional songs from Mexico's countryside. One young woman found a connection to her ancestors through the sounds of guitars and tears.