European Space Agency (ESA) has said, has lost contact with major satellite Envisat, specializing in earth observation mission.
With a total cost of up to 2 billion euros in 2002, Envisat is considered the most expensive launches in the history of EU space - Photo: ESA
After the sudden loss of contact with Envisat from 8.4, far ground control station of the ESA has not rejoined the line with 8-ton satellite.
AFP quoted authorities for control of European or, Envisat remains in stable orbit, it is unclear why the incident occurred.
The rescue teams are trying their best to re-establish contact with the satellite observed the world's most complex ever.
Envisat was launched into Earth orbit since 2002, and operation time is expected to exceed 5 years.
ESA Envisat planned to retire in 2014, once the first satellite in the group directly only orbital replacement.