RT-70

There are three radio telescopes designated RT-70, all in countries that were once part of the former Soviet Union, all with similar specifications: 70m dishes and an operating range of 5–300 GHz.

They are a part of the former Soviet Deep Space Network, now operated by Russia.

The Yevpatoria facility has also been used as a radar telescope in observations of space debris and asteroids.

With their 70m antenna diameter, they are among the largest radio telescopes in the world.

They are: In 2008, RT-70 was used to beam 501 messages at the exoplanet Gliese 581c, in hopes of making contact with extraterrestrial intelligence.