How the Time Traveling 'Back to the Future' DeLorean Works (Infographic)
Doc Brown's time machine is a nuclear powered, stainless-steel flying car.

Doc Brown's time machine is a nuclear powered, stainless-steel flying car.
Los Angeles could be in for a fair bit of shaking in the next three years, as a magnitude 5.0 or greater earthquake is almost certain, a new model suggests.
Paging Charles Darwin: The island of Santa Cruz within the Galápagos has not one but two distinct species of giant tortoise, a new genetic study finds.
U.S. marijuana use has more than doubled in 10 years, in parallel with the legalization of medical and recreational marijuana use.
Around the human ear are tiny, weak muscles that once would have let evolutionary ancestors pivot their ears to and fro. Today, the muscles aren't capable of moving much — but their reflex action still exists.
When an Apatosaurus dinosaur slapped its impressively long tail onto the ground, other beasts likely listened. Turns out, the long-necked dino may have broken the sound barrier with its tail whips more than 150 million years ago.
Jazz-playing computers and robots could soon yield clues about how to help people collaborate with machines, researchers say.
The fecal transplant is poised to become a mainstream practice, researchers say.
Phytonutrients are chemicals produced by plants. Plants use them to stay healthy, and people who eat phytonutrient-rich foods get health benefits as well.
Goats are among the earliest domesticated animals. Mountain goats live in steep, rocky areas.
Scottish nurse Pauline Cafferkey and U.S. physician Ian Crozier have both suffered from possible relapses of Ebola. Although people often suffer from complications after Ebola, true relapses are a mystery, although they seem to be rare, experts say.