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After years of negotiations, nations have reached an agreement to establish the world's largest marine sanctuary in Antarctica's Ross Sea.

Twenty-four countries and the European Union reached the unanimous deal at an international meeting of the Commission for the Conservation of Antarctic Marine Living Resources in Hobart, Australia on Friday.

On Thursday, Hillary Clinton packaged a major new school policy proposal as an attack on her rival, Donald Trump.

"Donald Trump has made no apologies to the growing list of people that he has attempted to bully since the launch of his hate-filled campaign," read the press release from the Clinton campaign about a new $500 million initiative called "Better than Bullying."

Sometimes political ads go down in history because they strike a nerve in voters, like Lyndon Johnson's 1964 "Daisy", or Ronald Reagan's 1984 "Morning In America."

Others are memorable simply because they feel different. Sometimes they're just plain weird. This year, during one of the most unusual election cycles ever, some candidates across the country are leaning into that non-traditional landscape — especially when it comes to their campaign advertisements.

Speaking at a rally in Tampa, Fla., on Wednesday, Hillary Clinton told the story of a leukemia patient named Steven who "ditched his oxygen tank," as Clinton told it, to vote early.

"If Steven can do that, nobody has any excuses," she chided the crowd.

The Clinton camp is putting a hard push on to turn out the vote before Nov. 8. The number of people taking advantage of early voting could hit record levels this year. Here's a primer on early voting:

1. How many people will vote early this year?

One of the greatest rifts in Christianity — between Catholics and Lutherans — isn't what it used to be. As a sign of those much improved relations, Pope Francis is traveling Monday to Sweden, an overwhelmingly Lutheran country, to kick off a year-long commemoration of the Protestant Reformation that split the churches 500 years ago.

When Katlyn Burbidge's son was 6 years old, he was performing some silly antic typical of a first grader. But after she snapped a photo and started using her phone, he asked her a serious question: "Are you going to post that to Facebook?"

She laughed and answered, "Yes, I think I will." What he said next stopped her.

"Can you not?"

That's when it dawned on her: She had been posting photos of him online without asking his permission.

A runway will remain closed while investigators look into why the charter aircraft carrying Indiana Gov. Mike Pence and more than 40 others slid off the runway Thursday night while landing at LaGuardia Airport in the New York City borough of Queens.

NPR's Scott Detrow reports that Pence, Donald Trump's running mate, and everyone else on board are safe after the jet touched down in stormy weather and just kept going.

Smartphone chip maker Qualcomm Inc. has agreed to buy NXP Semiconductors for $38 billion. The agreement allows Qualcomm, which makes chips for Apple and Android, to become the top seller of semiconductors for the car business.

Qualcomm's core business is in processors and wireless chips for smartphones. The deal allows the San Diego-based company to reduce its dependence on smartphones, a huge business that has reached a plateau.

As the six-week trial of Ammon Bundy and his co-defendants wound its way to Thursday's startling conclusion, Bundy's supporters were a colorful presence outside the federal courthouse in Portland, Ore.

They dressed in traditional cowboy attire and waved American flags at passing cars. Some even rode horses up and down the busy city sidewalk.

A block away, Jarvis Kennedy watched all of this and rolled his eyes.

"We don't claim to be victims, but we were," he said.

Scientists have long suspected that the common swift remains airborne for extraordinary amounts of time during its annual migration.

Now, a team of scientists in Sweden has proved that these birds fly for tremendously long periods of time. They affixed data loggers onto a total of 19 of the master fliers in 2013 and 2014, and recaptured the birds months or years later. Researchers found that the birds can spend almost their entire 10-month nonbreeding period on the wing.