National News

Computer modeling illustrations of Pluto's moon Nix demonstrate that its orientation changes unpredictably as it orbits the "double planet" of Pluto and Charon.

Pluto's Moons Are 'Tumbling In Absolute Chaos,' NASA Says

In the NFL, something that behaves like Pluto's football-shaped moons might be called a wobbly duck. NASA simply calls them astonishing.

Instead of steadily rotating through their orbits, two of Pluto's moons "wobble unpredictably," the space agency says, citing new analysis of data from the Hubble Space Telescope.

Teacher Sarah Hagan (middle) receives the key to the city from Drumright, Okla., City Manager Mark Whinnery (left) and Mayor Deborah Bright.

Give That Teacher A Key To The City!

The motivation behind our series, 50 Great Teachers, is pretty simple: Celebrate great teaching and great teachers.

A few months ago, I celebrated Sarah Hagan, who doesn't so much teach algebra as shout it from the rooftops. Never have I seen more creative math lessons or more engaged students than in her classroom in Drumright, Okla.

The story is below. If you missed it, here's all you need to know about Hagan:

Algebra speed-dating, problem-solving with snowballs, math jewelry collection.

A relative of passengers on board the Eastern Star cruise ship is comforted by a man along the Yangtze River's banks in Jianli, China. Relatives of people missing after the cruise ship capsized have gathered at the disaster site.

Chinese Cruise Ship Death Toll Rises To 75

There are still only 14 survivors of Monday's cruise ship disaster in China's Yangtze River. Rescue teams have now cut holes through parts of the overturned ship's hull, but they've found no more survivors from the ship that carried more than 450 people.

Cutting into the Eastern Star's hull is part of a desperate effort to find people who might have lived through the capsizing — which officials believe may have trapped air pockets in the ship's interior. But the move also brings risk, as it could release air that's been providing the ship with buoyancy.

Jurors in the trial of Aurora theater shooting suspect James Holmes will hear differing expert opinions about whether Holmes was legally insane at the time of the shooting.

Trial Of Aurora Theater Shooting Suspect Could Be A Battle Of The Experts

In the trial of James Holmes, prosecutors spent the first month re-creating the night of the shooting. But this isn't a question of whether Holmes killed 12 people at the midnight premiere of the latest Batman movie in Aurora, Colo. The question has always been: Was he insane at the time?

For prosecutors, detailing that night is critical in exploring Holmes' mindset. During the process, jurors watched a lengthy, videotaped psychiatric examination. It was ordered by the court after Holmes pleaded not guilty by reason of insanity.

An Access Health CT location in New Britain, Conn.

State Obamacare Exchanges Experience Growing Pains

The states that set up their own insurance marketplaces have nothing to lose in King v. Burwell, the big Supreme Court case that will be decided by the end of June. But that doesn't mean those states are breathing easy.

With varying degrees of difficulty, all of the state-based exchanges are struggling to figure out how to become financially self-sufficient as the spigot of federal start-up money shuts off.

Phone Carriers Tight-Lipped On How They Will Comply With New Surveillance Law

The new USA Freedom Act prevents the bulk collection of phone call metadata by the NSA. AT&T, Verizon and other carriers will keep phone call metadata on their servers, and give it to the National Security Agency if subpoenaed by the Foreign Intelligence Surveillance Court, often called the FISA Court.

To be clear, phone companies do not have a new mandate to collect or store metadata — the numbers called and time and length of those calls.

Former Texas Gov. Rick Perry speaks at the Iowa Faith & Freedom 15th Annual Spring Kick Off in Iowa in April.

5 Things You Should Know About Rick Perry

This post has been updated to note that Perry has now officially gotten into the race for president.

Former Texas Gov. Rick Perry announced Thursday that he's running again for president. His 2012 presidential campaign was tripped up by back surgery medication and several embarrassing missteps, including his "oops" debate moment, in which he forgot the third federal agency he said he wanted to cut.

NFL To Stream A Game Online For The First Time This Fall

The NFL, long a mainstay of network TV, will be coming to more screens this fall. The league announced that it is partnering with Yahoo to live-stream the October 25 game between the Buffalo Bills and Jacksonville Jaguars.

It's the first time the NFL will stream an Internet-only game (although fans in the two teams' markets will also be able to view the game on their usual TV stations.)

Introducing The First Non-Medical Intern's Union In The U.S.

Nobody expects an internship to make one rich — but for many, the entire experience has become simply unattainable.

Reynaldo Leal tells NPR doing an internship was impossible. "I was going to school on the GI Bill, and when it came time to look at internships I couldn't make the pay (or lack of pay) work when it came to providing for my family," Leal says. "A couple of weeks of not getting paid meant affecting my family's budget to the point of not paying rent or bills. It seemed like internships were for kids with no major responsibilities."

Fortunate Nyakupinda earns a living by selling secondhand clothes from the back of her car.

How To Make A Living In Cash-Poor Zimbabwe

On May Day, Zimbabwe's information minister, Jonathan Moyo, posted a bleak tweet, listing what he described as his country's triple challenge after the economic crash of 2007-2008: "We've workers without work, we've lost the sense of labour value and we lack a strategy to create wealth."

Zimbabweans lament that life is tough and everything is expensive in their U.S. dollar-based economy.

So how do people get by?