Scientists have fertilized mouse eggs with sperm created from embryonic stem cells in the lab, a new study reports.

Monuments often lack good historical explanations or offer information that is out of date. A new project would send presentations to cell phones.

Many of the volunteers rated their reaction to the drug as one of the most meaningful or spiritually significant experiences of their lives.

Heat could kill some of the premium growing regions, a new study predicts.

Results of a competition designed to debunk a widely publicized strategy for defeating aging have set off a whole new round of controversy.

Photograph collage of a nesting leatherback sea turtle.