The Fantastic Four is the first Marvel Comics superhero comic book series, and here are their most important storylines in history.

The late theoretical physicist left a chilling warning about what might happen if humans make contact with a UFO, and one ...

The Green Knight becomes a purple giant. Meet the man with the booming voice who portrays the cosmic being Galactus in "The ...

A new study shows lightning begins with cosmic rays from space, uncovering how storms create the energy behind Earth’s most powerful strikes.

Unlike sociable raptors (like the black kite), secretary birds are often solitary or found in pairs. They hunt during the day ...