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Officials Hope Remote-Controlled Avalanches on Lizard Head Pass Will Help Keep Vital Byway Open During Snow Slide Season

Officials Hope Remote-Controlled Avalanches on Lizard Head Pass Will Help Keep Vital Byway Open During Snow Slide Season

A new Swiss-designed avalanche control system on the pass southwest of Telluride aims to make it safer for crews to trigger slides. The remote-controlled system uses elevated towers to drop ordnance on snow-loaded slopes.

Special Series | Collecting Light: An Exploration of Arizona Astronomy

Tomorrow, We See Farther

Astronomers admit that our map of the known universe has many blank spots. There are vast areas of space that are still a mystery. That’s about to change.

Dark Skies, Bright Future

Arizona became an astronomy hub a century ago because of its clear, dark skies. Settlements were small, remote mountaintops plentiful, and clouds rare. Even today, the state gets up to nine months a year of near-perfect conditions for night sky observations.

The Age of the Giant Telescope

Every few years, a new telescope is proclaimed to be the “world’s largest.” The race is on to build instruments that see farther into the heavens and explain more of the unknown universe.

A Century of Stargazing

How did Arizona get to be America’s epicenter of astronomy? Part of it was pure happenstance. But Arizona’s notoriously clear and dark skies also played a role.

The Popular Science of Public Observatories

Astronomy is becoming huge with everyday people. Observatories with public viewing programs are booked months in advance. People want to see what the professionals are seeing. It’s all part of the democratization of astronomy.

Special Series | Copper at the Crossroads

Stories From the Archives

Making Mirrors

Making Mirrors

It takes many years to cast a large telescope mirror at the Steward Observatory Mirror Lab. But the race to build an ever-larger celestial "eye" is leading to new discoveries in astronomy.

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