Is there honor in a losing battle? The US military faced this question in Vietnam. Its response would eventually change how the media covered war and how Americans perceive it.

Was Vietnam 'a quagmire' or a 'stalemate machine'? Understanding this 50-year-old debate can shed light on why the US is currently locked into a 'forever war.'

Musicians were able to connect with confused, scared and angry Americans – including those who supported the war – in a way actors, broadcasters and writers could not.

As Cassini’s titanic mission comes to an end, we need to start thinking ahead. A combined mission to explore Saturn's moons Titan and Enceladus would be a good place to start.

With the probe now on its 'Grand Finale,' a Cassini team member describes the amazing discoveries it made about the ringed planet and its many moons.

Dreading math class as you head back into school? Never fear: Try these tips from famed mathematician George Pólya.

Teenagers aren't just lazy. Their sleep hormones aren't calibrated to let them get up and go until later in the morning – which has academic and health consequences when school starts too early.

As the Summer of Love ran into a number of problems, a new set of hippie 'Jesus freak' evangelists appeared in the Bay Area.

A scholar argues that like many sacred books, the popular television show encourages men and women to reflect on their lives and choices.

Many hope that marijuana will help their insomnia. A sleep psychologist examines the evidence.

Poor diet kills hundreds of thousands per year. If we want to achieve meaningful health care reform, we need to address our nation's nutrition crisis.

Inserting a random DNA mishmash into a plant or bacterium directs it to make a novel protein. Sifting through the resulting molecules, researchers may find ones have medical or agricultural uses.

Comparing genomes of more than 200,000 people, researchers identified genetic variants that are less common in older people, suggesting natural selection continues to weed out disadvantageous traits.

A roundup of research into what makes passwords secure, and options for new standards of login authentication.

Some of the iPhone's innovations have made users less secure.

In New York City, hair salons are one of the few cultural spaces for Dominican women to bond. But they also perpetuate legacies of racism and colonialism.

The benefits of hosting the Olympics are so slim, or nonexistent, that fewer cities are bidding to host the games. That's a sign of serious trouble.

Some consumers were alarmed that airlines were charging thousands of dollars to get out of the hurricane's path. That's actually business as usual for more and more companies.

Trump's decision to end the DACA program, as well as his support for a bill that would drastically curb legal immigration, would hurt the US workers he says he's trying to help.

Would putting power lines underground avoid hurricanes knocking out electricity service for millions of people? The answer is not as straightforward as it seems.

A recent study shows that large piles of coal produce measurable quantities of fine particulate air pollution within a 25-mile radius. Covering coal trains and storage piles could reduce the problem.

Data reveal how hurricanes affect migration, and what it means for US immigration policy.

Meet the Commoners' Alternative Revolutionary Force, Colombia's newest political party. To move beyond its violent past, the new FARC will need a charismatic leader who can win over voters.