The space-weather forecast for the next few years: solar storms, with a chance of catastrophic blackouts on Earth. Are we prepared?

Social media—from Facebook to Twitter—have made us more densely networked than ever. Yet for all this connectivity, new research suggests that we have never been lonelier (or more narcissistic)—and that this loneliness is making us mentally and physically ill. A report on what the epidemic of loneliness is doing to our souls and our society.

The author comes to terms with a son who can never grow up.

Toxins begone! A purification-minded Jeffrey Steingarten puts the original Master Cleanse to the test.

Is quiz bowl the ultimate test of smarts or an overblown game of Trivial Pursuit?

Dairy scientists are the Gregor Mendels of the genomics age, developing new methods for understanding the link between genes and living things, all while quadrupling the average cow's milk production since your parents were born.

The government has spent hundreds of millions telling Americans to exercise more and eat less. But the country is getting heavier every year. It's time to change the way we think about getting fat.

Is there a technological solution to global warming?

Nature uses folding to manufacture some of its most intricate creations, from flowers and wings to protein and DNA. What if humans could do the same?