The Radioastron orbital telescope has ceased to respond to commands from the Earth.
On January 10, during a regular communication session, astronomers failed to receive a response from the device. From that moment on, three emergency communication sessions were conducted using antennas in Ussuriysk and Bear Lakes, and to working specialists from the NPO Lavochkin hasn’t yet been able to reach the satellite.
Radiostron Spektr R is Russian satellite with 10m radiotelescope.

Radioastron Spektr R Orbital Telescope