Bottled water is a big business, selling itself as a tastier and healthier alternative to the tap variety. Is there truth behind the claims?

MP3s transformed how we listen to music — and spawned digital piracy. Streaming helped the industry recover, but how can artists get their fair share?

Once a secret military program, GPS now guides our daily lives, from providing directions to finding friends. But what do we trade for this convenience?

Credit cards changed the global economy and attitudes about personal spending, but record levels of consumer debt beg the question: Just who's in charge?

DNA analysis has given us the tools to map disease, solve crimes and more. But in our rush to decode DNA, are we leaping before we look?

Plastics have transformed how we live, but progress comes at a high price: 7.8 billion tons of waste. Are plastics a miracle or a catastrophe?

Thanks to dating apps, finding love is easier than ever. But are we now so focused on playing the game that we're missing out on real connection?

Cheap, quick and tasty, fast food became a culinary craze in the 1950s. But has our quest for convenience created an irreversible health crisis?

Feminism has ushered in sweeping changes to society, securing rights for women around the world. How much further do we have to go?

We share the planet with an estimated 9 million robots, from self-driving cars to surgical arms. Could they one day completely replace humans?

Oil has brought great wealth to the Middle East and ignited major wars. Is it a blessing or a curse for the region, as well as the rest of the world?

Fifteen international agencies spend $62 billion every year on space travel. What's fueling our costly — and dangerous — drive to explore the universe?