This rap about the math concept known as the Fibonacci Sequence, is by Elissa Malcolm. Last week, we announced the finalists for the PBS NewsHour's Gza-inspired science rap contest. The entries were terrific and ranged from rocks and space…

EmbedVideo(6586, 482, 304); For Tuesday's NewsHour, Science correspondent Miles O'Brien visited the barren desert canyons of New Mexico, where investigators study explosives... by building and exploding bombs. While there, they assembled a pressure-cooker bomb -- the kind used…

On Tuesday's PBS NewsHour, Miles O'Brien visits the nation's most active explosives test facility, where scientists investigate the bombs that were detonated at the finish line of the Boston Marathon. Screen grabs from PBS NewsHour/NOVA It's a strange phone…

Homes, trees and cars damaged by Monday's tornado are seen by early morning light near Telephone Road and SW 4th Street in Moore, Okla., on Tuesday, May 21. Photo by Steve Sisney, The Oklahoman / NewsOK.com. On Tuesday,…

Correspondent Spencer Michels talks with the co-founders of Civic Insight, a technology startup aimed at helping cities like New Orleans tackle an ugly problem -- blight by makes real-time government data about a community's underutilized spaces.

EmbedVideo(5947, 482, 304); This is the first of two PBS NewsHour reports on hexavalent chromium, a chemical found in U.S. drinking water and the agency charged with regulating it. This report aired on March 13. There is…

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