Loneliness isn’t just about being alone or feeling friendless. It’s now recognized as a potentially fatal condition that millions suffer from.

With a glut of information at our fingertips, three authors not only discuss the challenge of determining whom we can trust but also offer some helpful guidelines.

Insight Video: The appointment of Mohammad Shtayyeh as Palestinian prime minister suggests the possibility of renewed momentum in the Israeli-Palestinian peace process.

What kind of world will our children inherit? Today’s environmental problems call for a long-term global solution—one that upends a current business-as-usual focus on near-term benefit.

Piers Millett of Oxford University’s Future of Humanity Institute talks about potential global biological catastrophes stemming from such risks as bioterrorism, pandemic disease and genetic manipulation.

Insight Video: Is it possible to be in politics without becoming tainted by political corruption?

Twentieth-century totalitarians shared a number of characteristics. With a new crop of autocrats entering the world stage, learning the lessons of our recent history is vital.

Both Stephen Hawking and Martin Rees have expressed optimism about the role of science and technology in resolving humanity’s overarching questions and problems. Vision reviews their recent books.

Historian Lisa Vox argues for finding a way to address the threats that face us all. It starts, she says, with not condemning others for holding a different worldview.

Bouncing back from traumatic stress requires a lot more than a strong will. Understanding why we don’t all respond the same way is a good place to start.

Is there hope for a resolution of the Israeli-Palestinian impasse in what some have called “a dangerous neighborhood”?

In this installment on the Prophets, we look at the lives and messages of Jeremiah and Ezekiel.

Insight Video: Men such as Lenin, Stalin, Mussolini, Hitler and Mao could one day reappear, but in a different form. Their shared traits serve as warning signs for us today.

Technology gives us access to the universe while at the same time creating risks to our continued existence. Does humankind’s best hope for long-term survival come down to leaving Earth behind?

The mining industry may seem an unlikely place to find practical examples of the Golden Rule in action.

That sports, conventionally seen as promoting health, should be deemed a cause of death raises serious ethical questions.

The chief engineer for NASA’s robotic Mars Exploration Program talks about what it would take to put people on the Red Planet. Will Mars be humanity’s lifeboat?