What is the moon’s Ocean of Storms?

Oceanus Procellarum - the lunar Ocean of Storms - is a vast volcanic plain, thought to have been created in an ancient asteroid impact. More recently, scientists came to believe it formed via processes within the moon itself.

Possible Mars landing site in 2018

The goal of ExoMars 2018 is to search for evidence of past or present martian life.

Lifeform of the week: Fishing cats

Boldly going where few cats have gone before: into the water.

2014 State of the Birds report: Mixed marks for U.S. birds

While some wetland birds in the U.S. appear to be doing well because of conservation programs, other birds are experiencing steep declines in population numbers.

U.S. and India to collaborate on Earth and Mars missions

Both NASA and the Indian Space Research Organization placed spacecraft in orbit around Mars last month. They'll join forces on an Earth-orbiting mission set for 2020.

Astrophotographer’s self-portrait

A famous shot by Ansel Adams inspired this photo by Daniel McVey.

Wind and solar energy capacity catching with nuclear power

The Worldwatch Institute quantifies the steady decline of nuclear energy’s share of global power production, and renewable energy's increased share.

California drought linked to climate change, say scientists

Stanford researchers report that the drought now crippling California is likely linked to human-caused climate change. Other researchers disagree.

Milky Way over Green Lake, in Horsham, Australia

The glow of a town and more-distant glow of the zodiacal light shine above an Australia lake. Even farther away is the arc of the Milky Way.

Video: New 3D look at brain circuitry

New imaging technology provides unprecedented 3-D views of an intact brain's neural structure and its vast internal connections.