April 23, 2009 Report The military has deployed thousands of robots in Iraq and Afghanistan, where the machines search for IEDs and conduct aerial surveillance. Tonight on the NewsHour, correspondent Tom Bearden reports on the future of military robots.
March 17, 2009 Report Scientists in California will soon power up a $4 billion laser that's been 10 years in the making. Spencer Michels reports on how they aim to realize the decades-old dream of creating clean energy through nuclear fusion.
May 15, 2009 Report Researchers are beginning to use data from cell phone call records to answer questions about how people behave, where they travel, and the social networks that connect them.