After prisoners went on strike across the United States, guards locked some protestors in solitary confinement. How does isolation in prison affect mental health?

Rising levels of loneliness are harming our health. Sadly, there’s no magic bullet for this modern malady.

Humans have long imagined islands populated by bizarre and dangerous monsters. This unsettling speculation has been a vital part of how we came to understand the unknown.

For centuries, scientists on expeditionary voyages have made fascinating discoveries about the natural world. The deep sea remains one of the last unexplored frontiers – what secrets does it keep?

On Earth, quarantines help to contain outbreaks. During the Apollo Missions, NASA took precautions to make sure no alien germs hitched a ride back to Earth.

In a confined space, evolution sets off in some unusual directions.