SteffenKahl:
Replica Apollo 11 Spacesuit
SteffenKahl:
Used Space Shuttle Tire
SteffenKahl:
42-Inch Reflecting Telescope
SteffenKahl:
Percival Lowell Mausoleum
SteffenKahl:
24-inch (61 cm) Alvan Clark & Sons refracting telescope
SteffenKahl:
Observatory Dome Containing Alvan Clark 24-Inch Refractor Telescope
SteffenKahl:
Portrait of Percival Lowell
SteffenKahl:
Library
SteffenKahl:
Blink Comparator Machine
SteffenKahl:
Rotunda Museum
SteffenKahl:
The Pluto Walk
SteffenKahl:
The Pluto Telescope Dom
SteffenKahl:
Meteorite