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The dream of sustainable air travel is now one step closer to reality, after a team of researchers in Germany flew a plane that emits nothing but water vapor into the atmosphere.

Researchers from the University of Michigan led an excavation that unearthed the most complete ice age mastodon skeleton in Michigan since the 1940s.

Would you drink a beer originating in what used to be one of the most polluted rivers in the country?

The notoriously devoted exerciser in chief, President Obama has shared his current favorite workout jams for Wired magazine's November issue, showing an eclectic interest and a love of super speedy beats of rhythm and sound.

If the 21st century has taught us anything, it is that to fight a successful war an army needs a successful exit strategy. Bereft of one, while it may win the military battle, it will ultimately lose the strategic war.

"Oh great, a 10-hour airport layover," said no-one.

An association representing faculty at 14 state universities in Pennsylvania said its members are on strike following heated negotiations over wages and benefits.

CNN's Dr. Sanjay Gupta has been following the story of conjoined twins Jadon and Anias and had a chance to catch-up with their parents.

Nicole and Christian McDonald were in the hospital room with their newly separated twin boys, Jadon and Anias, when they glanced over at Jadon. He moved his left arm, ever so slowly, up to his mouth.

Four students, three male and one female, were shot Tuesday in the parking lot of a San Francisco high school, according to police. One student is in critical condition.

Florida Sen. Marco Rubio broke from many in his party when he said Wednesday that Republicans shouldn't discuss the Hillary Clinton campaign emails published by WikiLeaks, a number of which have created bad optics and real headaches for the Democratic ticket.

Anti-American protests outside the US embassy in the Philippines capital of Manila ended violently on Wednesday when a police van repeatedly plowed into the crowd.

I used to wake up each morning and, before I'd even brushed my teeth, I would check my email. This often meant that the first thing I saw every day was a frantic message from my boss. Eventually, I realized I had to set a rule: I wouldn't check my email until after I finished my morning workout. This small change made a huge difference in my stress levels. Even if I still had to deal with anxiety-provoking e-mails a little later in the day, at least I had a solid hour or more in the morning where I was blissfully -- and willfully -- ignorant.

A new national poll finds Hillary Clinton leading Donald Trump by 9 points heading into the third and final presidential debate.

A new poll shows Democrat Hillary Clinton with a solid lead in the traditional Republican stronghold of Arizona, yet another sign of Donald Trump's shrinking path to the nomination.

Eagle's Nest underwater cave network in Florida is known among divers to be a dangerous dive, and this week it killed two experienced divers.

The tunnel darkens beneath eerie red and blue lights, the only beacons in the otherwise black surroundings.

Donald Trump may not be able to count on the vote of Charles Barkley in the forthcoming US presidential election, but the former NBA star appears to have a modicum of sympathy over how controversial sexual remarks by the Republican candidate have been portrayed.

It has separated from mother and is now facing a baptism of fire as it heads towards the surface of the Red Planet.

Are you looking for the perfect Christmas present for the Vladimir Putin fan in your life?