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A technology called adaptive optics is enabling astronomers to peer into space as never before. The specialized telescopes, which have mirrors that can adjust their shapes up to 1,000 times per second, compensate for the blurring that happens when light passes through Earth's atmosphere.

But so, too, can cheeriness. Research on college roommates indicates that a person's psychological outlook can rub off on those close to them.

Alzheimer's disease and depression have a lot in common, and people with depression face a greater risk of dementia as they age. Researchers aren't sure why and are seeking clues. They are trying to find out if treating depression will then help prevent or delay dementia.

Brazil's government has been caught by surprise by the size and scale of recent protests. But analysts say they shouldn't have been. In a connected world, what happens in one part of it — say Turkey — can inspire social movements as far away as Brazil.

In Russia, a culprit trying to make a quick buck made off with a small metal bridge. After dragging it home with his tractor, he cut it up with a welding torch. Police followed the trail he left behind.

His classic songs included "Turn On Your Love Light" and "Further On Up The Road." A contemporary of B.B. King, Bland was one of the last connections to the roots of the blues.

The Supreme Court on Monday ordered a lower court to reconsider its decision upholding a race-based admissions program at the University of Texas. Explore the ruling.

In a 7-1 decision, the justices ruled a lower court had not applied the right standards when it upheld a University of Texas program. It said that court needs to put the Texas program through "strict scrutiny," and had not done that.

Boloco is a chain of burrito restaurants that prides itself on ethical food sourcing. In a series of YouTube videos, its CEO unwraps his company's burritos and shouts from the rooftops about their decidedly distant origins.

Renee Montange speaks with NPR's Dina Temple-Raston for an update on the whereabouts of National Security Agency leaker Edward Snowden, and the involvement of WikiLeaks.