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Video: What Really Brought Down the Hindenburg?

Erin McCarthy

For 75 years, scientists have wondered what caused the Hindenburg, the world's largest airship, to catch on fire as it landed during a thunderstorm in Lakehurst, New Jersey on May 6, 1937.

Brain Game: Join Us

Today's mentalfloss.com Brain Game Tuesday Test Time challenge is a quick one, but that's okay... you still have lots to do before the holiday arrives, right?

Morning Cup of Links: Monkey Custody Dispute

Miss Cellania

This week in litigation: The people vs. IKEA Monkey.

20 Gentle Quotations from Mister Rogers

Chris Higgins

"Solitude is different from loneliness, and it doesn't have to be a lonely kind of thing."

WWI Centennial: The Conference of London Convenes

Erik Sass

Installment #50: In mid-December 1912, as Europe seemed to teeter on the edge of war, diplomats representing the Great Powers, the Balkan League and the Ottoman Empire hurried to an international conf

Watch "John Denver and the Muppets: A Christmas Together" in Its Entirety!

Erica Palan

I'm kind of nuts for the Muppets, so you can imagine my delight when I discovered John Denver and the Muppets: A Christmas Together is available for our viewing pleasure on YouTube.

Celebrate National Free Shipping Day at the mental_floss Store!

Erin McCarthy

National Free Shipping Day is a real thing. Take advantage in the mental_floss store by entering "SHIPFREE" at

Chasing the Cicada: Exploring the Darkest Corridors of the Internet

the mag

By Jed LipinskiWhen an unsuspecting researcher followed a mysterious command on a 4chan board, he found himself drawn into a scavenger hunt that led him down the darkest corridors of the internet and

The Missing Links: When Statues Attack

Colin Patrick

Will There Be A Barcode on the Tombstone? The inventor of the omnipresent barcode recently died and his obituary is sort of odd. * The Future Is Now: Invisibility Cloaks They’re real, and the

Mars Curiosity: Looking Forward, Looking Back

Chris Higgins

On August 6, 2012 the Curiosity rover made a successful touchdown on Mars.

Why Does "XOXO" Mean "Kisses and Hugs"?

Sean Hutchinson

Whether you end a letter or e-mail with it—or you recognize it from the end of each Gossip Girl episode—“Xoxo” is commonly known to refer to the phrase “Kisses and hugs.” But how did these two inconsp

Video of the Huge Asteroid that Buzzed by Earth Last Week

Erin McCarthy

Last week, the 3-mile-wide asteroid 4179 Toutatis flew by Earth—on December 12, Toutatis was 4.3 million miles from Earth; on December 13, it was about 4.4 million miles away.

9 Delightfully Bizarre Christmas Cards from the 1800s

Erin McCarthy

After the first Christmas card was sent in 1843, Victorians eagerly embraced the new tradition. Here are just a few of the wonderfully weird cards we tracked down.

Brain Game: Math Square #151

Enjoy today's new Monday Math Square for today's mentalfloss.com Brain Game challenge - and good luck! Place the digits 1 through 9 in the white blanks so that the mathematical equations

Morning Cup of Links: Sandy Hook Elementary

Miss Cellania

Remembering the Victims of the Sandy Hook Elementary School Shooting.