Pacholka will be present May 18 to sell and sign copies of his photos. Other authors and exhibitors are also expected, and the museum has declared free admission for that day only. His photographs have appeared in Time, Life, Newsweek and National Geographic magazines, in Encyclopedia Britannica and on MSNBC. NASA has repeatedly used his images of historic celestial events framed by scenic Southwestern desert landscapes such as the Valley of Fire and Mojave Desert. Pacholka has photographed in 35 national parks where some of his work is now currently sold.

"Viewers are treated to a glimpse of the spectacular natural beauty that exists when our desert scenery meets with the spectacular celestial events continuously unfolding in the sky above," said Kathryne Olson, museum director.

Pacholka has won the "Picture of the Year" award three times from Time-Life. Each image includes desert scenery and is designed to showcase unique celestial events in the night sky, as one would see them in their natural surroundings with the unaided eye. Every photo is an original single-image photograph with no double exposures or computer manipulation.

The Lost City Museum is open daily, 8:30 a.m. to 4:30 p.m. Admission charge is $3 for adults age 18 and over. Those 65 and over pay $2, while children and members enter free.

The museum is located in Overton, about 60 miles northeast of Las Vegas via Interstate 15 and exit 93 (State Route 169). For more information, call the museum at (702) 397-2193.