NASA’s New Horizons flew past a distant bi-lobed world after a journey spanning more than three years to get a glimpse into the early formation of our Solar System.

AAAS' Science Magazine honors major scientific discoveries.

Enceladus, one of Saturn's smaller moons, may have a subsurface ocean at least the size of the U.S.' Lake Superior in its southern hemisphere.

A distant planet named HR 8799c, located 130 light-years outside of our solar system, has water and carbon monoxide—but not methane—in its atmosphere, researchers say. Their findings suggest that a particular planet-forming mechanism, known as core accretion, brought the young planet into existence.