A decades-long (and counting) study reveals happiness lies not necessarily in the achievement, but in the pursuit.

Human life expectancy has just about peaked, according to a study published Monday in the journal Nature Aging, and barring a transformative breakthrough in medical science, people will top out at a ...

The origin of life on Earth is one of science’s biggest questions, and previous theories have suggested that lightning may have played a role. While previous studies say volcanic or atmospheric ...

Chalk up another victory for “Conan the Bacterium”—a rugged germ that fresh research suggests could conquer the solar system.

(Pirotehnik/iStock/Getty Images Plus) Giving birth to more than the average number of children or having no children at all ...

Astronomers have discovered a major sign of life — and “the first hints… of an alien world” on a distant planet orbiting outside the solar system, according to a new report. The scientists believe the ...

How did the building blocks of life come together to spawn the first organisms? It’s one of the most longstanding questions in biology — and scientists just got a major clue. In a new study published ...

Life and death aren't the be-all and end-all states of biological existence—a third state is likely somewhere in between. According to new research, cells from a dead organism can often take on new ...

A major cohort study suggests that consistent adherence to established healthy eating patterns may add years to life, even after accounting for genetic predisposition. Study: Healthy dietary patterns, ...

NEW YORK (AP) — A microscopic discovery in a California lake sparked buzz and controversy more than a decade ago when it was first revealed. Scientists said they'd discovered bacteria that used the ...