Kitt Peak from 20 miles away.

The road to Sells, tribal town of the Tohono O'odham Nation, as seen from the road up Kitt Peak.

The 2.3m Bok Reflector (on left) and the 4m Mayall Telescope (right).

The 4m test disc - same shape and size as the Mayall's mirror - decorated by Tohono O'odham.

The 0.9m WIYN Telescope (left), 0.4m Visitor Center Telescope (center) and the 3.5m WIYN Telescope (right).

McMath-Pierce Solar Telescope (largest in the world).

No time for tennis.

Solis: An addition to the Solar Scope.

Looking up the shaft.

Looking down the shaft as the Sun is reflected up.

The workroom of the McMath Solar Telescope.

The Adaptive Optics table. The tech removed the rolls of duct tape before I shot this picture.

Ceiling access to mirror.

This table rotates, instead of the building.

The 2.1m Telescope.

The 2.1m Telescope.

The Mayall 4m Telescope.

Mayall's horseshoe mount. It is enormous!

A view from the Mayall 4m Telescope.

The odd-shaped mountain peak in the background right is a sacred site of the Tohono O'odham Nation. The McMath-Pierce Solar Telescope is prominent on the left.

A 25m radio telescope of the Very Large Baseline Array. No cell phones permitted on Kitt Peak (no cell towers, anyway).