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Pass the salt: This space rock holds clues as to how Earth got its water

The discovery of tiny salt grains in a sample from an asteroid provides strong evidence that liquid water may be more common in the solar system than previously thought.

100 years ago, 'telescope of huge size' launched UArizona's leading role in astronomy

On April 23, 1923, the university celebrated a new, 36-inch telescope that would kick off major astronomical research. Steward Observatory will be rededicated this weekend in honor of its 100-year anniversary.

Nanotechnology Now - Press Release: Optical switching at record speeds opens door for ultrafast, light-based electronics and computers:

3D radar scan provides clues about threats to iconic Alaskan glacier

Mapping a large coastal glacier in Alaska revealed that its bulk sits below sea level and is undercut by channels, making it vulnerable to accelerated melting in an already deteriorating coastal habitat.

Hansel and Gretel's breadcrumb trick inspires robotic exploration of caves on Mars and beyond

Future space missions likely will send robots to scout out underground habitats for astronauts. UArizona engineers have developed a system that would allow autonomous vehicles to explore caves, lava tubes and even oceans on other worlds.