The Great Math Mystery
Take a mathematical mystery tour with Dr. Mario Livio.
Hagia Sophia: Istanbul's Ancient Mystery
Examine Hagia Sophia’s seismic secrets, which have insured its survival through a dozen earthquakes.
Petra: Lost City of Stone
Follow an archaeologist and sculptors to learn how the people of Petra built their city of stone.
Colosseum: Roman Death Trap
Watch a team re-create a lifting machine and trap-door system to release a wolf into the Colosseum.
Sinkholes: Buried Alive
Sinkholes are examined. The collapses can be gradual.
Sunken Ship Rescue
Follow the epic operation to secure, raise, and salvage the Costa Concordia cruise ship
4/2/15 9:00 PM
4/3/15 5:00 AM
4/4/15 2:00 PM
4/5/15 1:00 AM
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Miles O'Brien examines the possible motivations of rampage killers, including the theory that they're driven by the desire to die, not kill, but want to go out making headlines. Also: what science reveals about brains at risk for violence.
Part of the series After Newtown, a weeklong conversation about gun violence in America.
From The World's Science podcast to Nova, we'll deliver updates from these cutting edge programs. See a sample »