A debugging tool developed by researchers at Columbia and Lehigh generates real-world test images meant to expose logic errors in deep neural networks. The darkened photo at right tricked one set of neurons into telling the car to turn into the guardrail. After catching the mistake, the tool retrains the network to fix the bug. Image Courtesy of Columbia Engineering

Researchers at Columbia and Lehigh universities have come up with a new approach to self-driving cars and other self-taught systems.

An artist's depiction of two neutron stars colliding. (Carnegie Institution for Science)

Astronomers have for the first time witnessed a pair of dead neutron stars colliding, and have confirmed that the heaviest metals in the universe, from gold to platinum, are formed in explosions like this one spotted 130 million light-years away. The discovery was announced Monday and involved thousands of astronomers globally, including a team at Columbia University. 

Safwan Masri in a navy blue jacket, tie and white shirt.

In 2011, Tunisia’s Jasmine Revolution inspired the Arab Spring, a wave of protest movements across the Middle East and North Africa that held the promise of a new political future for the region. For all of its challenges, Tunisia today stands alone in its peaceful transition to a functioning democracy.

A small child sitting on her mother's lap smiles at Irwin Redlener.

Irwin Redlener has met thousands of children through the Children’s Health Fund, a nonprofit organization he co-founded in 1987 with singer Paul Simon.

When Irwin Redlener was a young doctor, he was certain that child poverty would end in his lifetime. “It was impossible for me to think that that would not happen,” Redlener said. Yet with child poverty as intractable a problem as it was nearly 50 years ago, he remains committed to the battle against it.

The four winners of the MacArthur Genius Grant 2017.
Urban Design Program Director Kate Orff and Architecture Adjunct Damon Rich won 2017 MacArthur Foundation "genius" grants. Musician Tyshawn Sorey and Computer Scientist Regina Barzilay, both Columbia alumni, were also named MacArthur Fellows.
archival image from Frank Lloyd Wright

Frank Lloyd Wright and Taliesin Fellows, Broadacre City model, 1935; The Frank Lloyd Wright Foundation Archives. Image Courtesy of the Museum of Modern Art | Avery Architectural & Fine Arts Library

This fall the Miriam and Ira D. Wallach Art Gallery brings together two very different mid-20th century visions for housing in the U.S. with its exhibition, Living in America: Frank Lloyd Wright, Harlem and Modern Housing.

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