Are we alone in the universe, or is there intelligent life out there? And if so, how would we find it? Read more about habitable zones on distant worlds.

A gene protects grains (wheat, rice, corn, barley) from disease. Our species owes its survival in part to the stoutness of the disease-resistant gene in grains.

Mysterious microbes might be lurking beneath Antarctica ice sheets. Oceanographer Chuck Kennicutt is interested in how organisms would make a living out of these cold, dark environments, and believes that the discovery and analysis of such microbes could shed light on how life evolved on our planet.

A dwarf galaxy in the direction of the constellation Pegasus is being stripped of its gas, according to astronomers. A galaxy needs its gas to create new stars. So we might be seeing this galaxy near the end of its ability to form stars.

Extra Antarctic snowfall could slow sea level rise, as more water stays in the ice sheets. Learn more about what this means.

An astronomer has found four stars in a tight orbit that might help unlock secrets of how stars evolve. The system is BD -22°5866, and astronomers thought it was one star.

GRAIL, set for launch in 2011, will measure gravity and map the moon's gravity. It consists of two satellites that'll orbit the moon for about 90 days, like a pair of mini-moons of the moon.

EarthSky Communications today announced the launch of a new series of 10 podcasts - focused on the emerging science of nanotechnology.

Scientists at work in the Arctic say the pace of change there is now so rapid that some creatures might not be able to adapt. For example, Arctic ringed seals give birth and nurse their young in caves dug out on the snow-covered ice.

Leaders of industry, science, journalism, politics, and sustainability converge on Wednesday, March 26 in Colorado for the first Aspen Environment Forum.