Opinion

Mary Shelley cautioned us of the dangers of extending science into realms where we have little control of the outcomes; may we all read her tale — and take in its lessons, says Marcelo Gleiser.

Commentator Mike Pesca says watching football is no longer just glorious enjoyment of fantastic plays. With the NFL's frequent use of instant replay, it's become an exercise in scrutiny and doubt.

Before you dismiss them as inhuman or inhumane, consider their dramatic personal histories — and their ancestor grande damme Eliza, says guest blogger Jimena Canales.

North Korea's leader entered the talks with a strong hand. Researcher Ben Forney takes a look at Kim's endgame.

Psychologist Tania Lombrozo considers two books: In one, we learn what ancient Greece can tell us about Twitter trolls and, in the other, we're shown a world in which women have power over men.

The scholar Farideh Farhi examines why this fresh round of Iranian unrest is unlike the others.

The president's harsh message about Pakistan echoes one that U.S. administrations have been delivering to Pakistan for years, writes former Obama administration official Shamila N. Chaudhary.

Employing science's methodology is key — as it's the best antidote we have to the very human propensity to turn something we want to believe into a reality, says astrophysicist Marcelo Gleiser.

Only those blind to realities on the ground in Iran are now blindsided by the wrath of the Iranian people, writes Abbas Milani.