By the mid-1980s, ROT-54 had become one of the most technically advanced scientific projects in the Soviet Union. The telescope conducted radio observations of stellar activity and deep cosmic signals, representing a bold attempt to rethink the architecture of large astronomical instruments.
After the collapse of the Soviet Union, funding dried up, and the complex's operations gradually ceased.
In the 1970s, Armenian engineer Paris Geruni proposed an idea that was unusual for its time: a hybrid telescope that would combine radio and optical observations in a single system.
Construction began in 1975 on the slopes of Mount Aragats. Instead of a traditional mobile antenna, engineers built a 54-meter spherical reflector directly into the mountainside. Its surface was assembled from approximately 3,600 precisely aligned mirror panels.
The telescope wasn't abandoned because it failed—it was abandoned by history itself.
Today, it stands as a rare monument to scientific ambition, frozen in time high above the clouds.