Merrit Kennedy

When astronaut Scott Kelly's space capsule touched down in Kazakhstan, it was a familiar scene to Mark Kelly, who is a retired astronaut and Scott's identical twin.

NASA is conducting a "twin study" on the brothers to explore what spaceflight does to the body. Multiple universities are involved in the research.

New York Mayor Bill de Blasio says he will march in the city's St. Patrick's Day parade, ending his two-year boycott over a ban on LGBT groups.

NPR's Hansi Lo Wang tells our Newscast unit that the mayor's decision comes after organizers allowed a new group to march in the upcoming parade. New York's is the largest and oldest St. Patrick's Day parade in the country.

A team of refugees will compete alongside athletes representing their home countries at the Summer Olympics in Rio de Janeiro, the International Olympic Committee has announced.

Previously, athletes who did not represent a country were not allowed to compete.

The team will likely number between five and 10 athletes, the committee said in a statement, and "will be treated at the Olympic Games like all the other teams."

The crumpled brown paper bag looked like trash.

But luckily for baseball card enthusiasts, a family in a rural Southern town that was sifting through its great-grandparent's possessions took a closer look.

The family, who wishes to remain anonymous, found seven identical baseball cards of famed Detroit Tigers outfielder Ty Cobb dating from a printing in 1909-1911. Previously, only 15 of this particular card were known to exist.

The Department of Health and Human Services says it is expanding its Head Start program in Flint, Mich., with $3.6 million in one-time funding.

It's an effort to combat the developmental effects on kids from the city's lead-laced water.

The effects of lead exposure are lifelong and can cause "learning disabilities, behavioral problems and mental retardation," according to the World Health Organization.

Removing any doubt about whether you're allowed to puff away on an electronic cigarette while airborne, the Department of Transportation has explicitly banned vaping on commercial flights.

At first glance, the front-page headlines in China's Southern Metropolis Daily on Feb. 20 looked like normal fare: coverage of a speech by President Xi Jinping and a politician's funeral.

But read vertically, and there's a message that seems to criticize a government crackdown on the media.

NPR's Anthony Kuhn in Beijing reports that an editor at the major tabloid has been fired for allegedly sneaking in the subversive message, and walks us through what it says.

Havana will meet the Rolling Stones later this month.

The band has announced they'll play a free open-air concert in the Cuban capital on March 25.

That will make them "the most famous act to play Cuba since its 1959 revolution," the Associated Press reports.

Less than four months after it started accepting Syrian refugees, Canada says it has reached its goal of bringing in 25,000 people who have fled the raging civil war.

As thousands of migrants wait to cross the border from Greece into Macedonia, the U.N. warns that Europe is "on the cusp of a largely self-induced humanitarian crisis."

Macedonian authorities closed the Idomeni border crossing Monday, sparking clashes with the frustrated migrants who want to continue their journey north. Guards fired tear gas and rubber bullets at the crowd, the BBC reports.

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