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

When the Internet was created, decades ago, one thing was inevitable: the war today over how (or whether) to control it, and who should have that power. Battle lines have been drawn between repressive regimes and Western democracies, corporations and customers, hackers and law enforcement. Looking toward a year-end negotiation in Dubai, where 193 nations will gather to revise a U.N. treaty concerning the Internet, Michael Joseph Gross lays out the stakes in a conflict that could split the virtual world as we know it.

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 man who started the hacker wars.

The genius of Moses Kizza Musaazi: He's an inventor, entrepreneur, fixer of things that are broken in the troubled country of Uganda.

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.

Incredibly, Mark Zuckerberg has grown up to become an ace CEO—one whose way of thinking might drive Wall Street nuts.

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?

Ted Sarandos is placing the future of Netflix on a single high-stakes bet: original programming.