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December 29, 2014

Global
Ten World Figures Who Died in 2014

Ten people who passed away this year who shaped world affairs for better or worse.

World-Figures-Obituaries

May 26, 2015

Technology and Innovation
The World Needs Post-Silicon Solar Technologies

In his 2007 keynote address to the Materials Research Society, Caltech Professor Nate Lewis surveyed global energy consumption and concluded that out of all the renewable options, only solar power co…

Perovskite Cell

December 26, 2013

Defense and Security
Ten Americans Who Died in 2013 Who Shaped U.S. Foreign Policy

As 2013 comes to a close, here are ten influential U.S. foreign policy figures who passed away this year. 

American flags fly at half mast. (Jonathan Ernst/Courtesy Reuters)

September 9, 2011

Defense and Security
Friday File: Remembering 9/11

  New York City Fire Department Battalion Commander Tom Currao raises a flag outside the World Trade Center construction site at the 9/11 Memorial Visitors Center in New York on September 9, 2…

New York Fire Department Battalion Commander Tom Currao raises a flag outside the World Trade Center construction site at the 9/11 Memorial Visitors Center in New York September 9, 2011. The flag, which flew overseas during Operation Enduring Freedom, was accepted by museum curators into their collection. National and city leaders will commemorate on Sunday the ten-year anniversary of the attacks of September 11, 2001 with a ceremony unveiling a memorial and museum. REUTERS/Brian Snyder