There is a vast menagerie of potentially habitable worlds in the cosmos, which means the universe could be home to a diversity of life beyond what we can imagine. Creatures built on silicon rather ...

Friendships evolve throughout our lives, offering unique benefits and challenges at every stage. While friendships may come more easily in our 20s, the major life transitions that begin in ...

At the microscopic edge of biology, researchers have uncovered an organism so stripped down that it forces a rethink of what it means to be alive. The discovery hints at a form of existence that is ...

As life-preserving medical technology advanced in the second half of the 20th century, doctors and families were faced with a thorny decision, one with weighty legal and moral implications: How should ...