L. Carol Ritchie

Fans of the British royals are beside themselves with excitement.

Kate Middleton, the Duchess of Cambridge, has checked into St. Mary's Hospital in London and is in the early stage of labor, the BBC is reporting.

This baby will be fourth in line to the throne, behind grandfather Prince Charles, dad Prince William and brother Prince George, born in July 2013.

Officials have said the duchess and her husband do not know the gender of their second child.

Updated at 10:40 p.m. ET

A magnitude-6.7 aftershock rumbled Kathmandu and sent people running for open ground Sunday morning, a day after a massive 7.8-magnitude earthquake ravaged Nepal and the region. The death toll from the disaster topped 3,000, a police official told Reuters.

NPR's Julie McCarthy, reporting from the capital, described the scene on Weekend Edition Sunday:

Why would a couple of comedians build a museum in their Brooklyn apartment hallway dedicated to figure skaters Tonya Harding and Nancy Kerrigan?

Viviana Olen and Matt Harkins were only 6 and 7 in 1994, when Harding's ex-husband and his friend plotted to wallop Kerrigan on the knee with a baton, knocking her out of the national championship.

"We remember a very Disney version of the story," says Olen. "You know, this crazy, trashy person beat up the beautiful ice princess."

We bring you this story in case you want to get baking.

That's because Saturday is Pi Day — but it's not just any pi day.

It's March 14* of the year '15, or 3-14-15 — the first five digits of the number pi. It's a confluence that won't happen again for a hundred years. Math geeks are excited.

The family of the Arizona woman who Islamic militants claim was killed in a Jordanian airstrike is hoping she is still alive.

Kayla Jean Mueller's parents are not speaking to reporters, but issued a statement through a family representative late Friday asking for privacy and requesting that the so-called Islamic State, which has held the aid worker since 2013, contact them privately.

Jordan called ISIS's claim "criminal propaganda," and U.S. officials say they can't confirm her death, says Martin Kaste of our Newcast desk.

Updated at 3:00 p.m. ET

Dressed in black, world leaders, including French President Francois Hollande, German Chancellor Angela Merkel, Israeli President Benjamin Netanyahu and Palestinian President Mahmoud Abbas, stood at the front of a unity rally in Paris to show solidarity for the victims of this week's deadly attacks by Islamist extremists.

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