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Bastille Day celebrations turned to tragedy in Nice, France, after a truck plowed through a crowd walking on the waterfront.

Poisoning from synthetic marijuana is on the rise and, in some cases deadly, new research found.

Chaos broke out in Nice, France, after a truck plowed through throngs of tourists and locals celebrating Bastille Day on Thursday evening.

Life could exist in isolated pockets beneath the surface of Mars, according to Alfred McEwen, principal investigator of NASA's HiRISE high-resolution camera aboard the Mars Reconnaissance Orbiter. While they would most likely be primitive microorganisms such as bacteria, it would still be proof of life outside of our own planet.

Darryl Warren had what many consider a dream job: he sold BMWs.

Activist and professor Cornel West endorsed Green Party presidential candidate Jill Stein on Thursday, calling her the "only progressive woman in the race" in a jab at Hillary Clinton.

At CNN's Black, White and Blue town hall, police officers, politicians, activists, lawyers and mothers addressed their grievances with race and law enforcement in the U.S.

The 2,190-mile long Appalachian Trail is daunting even to those who have no trouble walking, and few who set out manage to travel the entire trail.

First, it was a magazine office and a kosher food market.

The planned speakers at the Republican National Convention include Heisman-winning quarterback Tim Tebow, Sen. Tom Cotton of Arkansas and Peter Thiel, the billionaire Silicon Valley entrepreneur.

It's no secret: Hong Kong is photogenic.

One witness, an American who was about 15 feet from the truck, said the driver pointed his tractor trailer into the crowd, mowing bodies over.

Philando Castile's mother says she wants his funeral to be a chance for people to come together.

Video posted on Twitter shows the truck that authorities say hit and killed dozens of people in Nice, France, driving through a crowded street. CNN's Anderson Cooper reports.

Tesla refuted a driver's claim that his car was in autopilot when it crashed on the Pennsylvania Turnpike earlier this month.

The long-classified pages detailing alleged Saudi Arabia government ties to the 9/11 hijackers will be released by Congress as early as Friday, sources told CNN Thursday.

Nominations for the 68th Annual Primetime Emmy Awards will be announced Thursday morning. Looking ahead to this particular awards show should start with a quick look back.

Supreme Court Justice Ruth Bader Ginsburg said Thursday she regrets remarks she made earlier this week to CNN and other outlets criticizing presumptive Republican presidential nominee Donald Trump.

Video from affiliate BFMTV shows chaos in the streets of Nice, France, where a truck has hit a crowd of pedestrians causing multiple fatalities.