We attended a Smithsonian astronomy seminar in Tucson.
We had classes and visits to giant professional telescopes in the daytime,
then viewing celestial objects through telescopes each night.
Kitt Peak
A dozen huge professional telescopes on a 6800-foot mountain
Left - from the outside Right - from the inside
Jon's face (with camera) about 50 feet tall
reflected in a multiple-mirror telescope
People standing at the base
of the same multiple-mirror telescope,
showing each mirror is as tall as a person
Vega-Bray, a private observatory for astronomy enthusiasts like us
Several of the telescopes available for public use at Vega-Bray
Our Smithsonian class with the telescopes we each built
Biosphere, an enclosed and sealable glass building
for plant and environmental research
One of about a hundred live hummingbirds in an enclosure
at the outdoor Arizona-Sonora Desert Museum
We stayed in Tucson at the beautiful Arizona Inn