Commentary: One era of nuclear brinksmanship was enough for CNET's Stephen Shankland, who visited the Russian nuclear weapons center of Sarov just after the first Cold War ended.
Siegfried Hecker serves as a scientific shuttle diplomat, building ties with rival nuclear researchers the world over.
Mehdi Yahyanejad uses an innovative technology to get past internet censorship in Iran and bring information to poor and isolated communities in Mexico.
Mehdi Yahyanead figured out a way to use satellite TV to bypass online censorship in Iran and beam internet content everywhere.
In an untouched forest in Northern California, Save the Redwoods League is using technology to protect some of the tallest and oldest living things on Earth
Among some of the tallest trees in the world, warmer temperatures are making for faster growth than ever before.
Protecting the endangered marbled murrelet begins with saving the giant redwood trees the birds depend on to survive.
Craig Newmark is a self-proclaimed nerd and reformed jerk. Now he's putting money behind his politics.