Dystopian stories often feature monsters, aliens, or robots as the bad guys. But some of the scariest shows reveal a darker ...

"Star Trek" is home to countless alien species, many of whom offer beloved characters. Some are not. We rank the 10 most disturbing alien races in the galaxy.

The research is mounting up that we might not be alone in this big wide world. So what's the likelihood that aliens are out ...

With tons of "Star Trek" alien races depicted over the decades, consistency is a tall order. And in the case of these aliens, ...

Until now, these terrifying giant aquatic reptiles with a bulky skull and powerful jaws were thought to be sea-dwelling predators, exclusively hunting in the oceans. Now, a 66-million-year-old ...