As it seeks to modernize its nuclear arsenal, the United States faces a big choice, one which Barack Obama failed to mention during his moving Hiroshima speech on May 27.

Should we spend a trillion dollars to replace each of our thousands of nuclear warheads with a more sophisticated substitute attached to a more lethal delivery system? Or should...

Facial expressions are important parts of how we communicate and how we develop impressions of the people around us. In “The Expression of Emotion in Man and Animals,” Charles Darwin...

Iranian President Hassan Rouhani and his policies are set to get a boost this week after voters elected a parliament that favors reform.

While Rouhani’s reformists didn’t win a majority of seats, it appears likely that the “moderate” independents also elected will side with his faction, giving the reformists an effective...

Being alone has many benefits. It grants freedom in thought and action. It boosts creativity. It offers a terrain for the imagination to roam. Solitude also enriches our connections with others by providing perspective, which enhances intimacy and fosters empathy.

To...

Tiger, tiger, burning bright

In the forests of the night…

-William Blake

There is general agreement that America’s landscapes, certainly its wildlands, are out of whack with their fires....

Across the U.S., many soon-to-be high school graduates are excited to begin college. Over the past decades, rates of college enrollment have increased. In 1950, only 16 percent of young people had at least some college exposure. By 2012,...

For years, transgender rights activists have argued for their right to use the public restroom that aligns with their gender identity. In recent weeks, this campaign has come to a head.

In March, North Carolina enacted a law requiring that people be allowed to use only the public restroom that corresponds to the sex on their birth certificates....

Brazil is in the midst of its worst political crisis since the 1960s and possibly its most severe economic downturn in the last 100 years.

The economy will not – and cannot – improve until the country emerges from the political chaos of the moment and puts into place strong and legitimate leadership.

Most of the commentary on...

President Barack Obama’s trip to Asia this week highlights how a key element of his would-be legacy is hanging by a precariously thin thread: the Trans-Pacific Partnership (TPP).

That mammoth trade deal, which spans a dozen Pacific Rim nations from the U.S. and Canada to Japan and Australia, took seven years to negotiate and would lower...

What is happening, or what should be happening, on college campuses has rarely, if ever, been a topic of the remarks of Donald J. Trump, the presumptive presidential nominee for the Republican Party.

The “Issues” section of his website has only this related to...