Experts warned that the Soviet sparrow survey could be on the way to Venus hitting the Earth later this year.
The 500-kilogram spacecraft was launched in 1972, but was launched by Kosmos 482 through the planet completely removed from control.
Expected estimates show that the probe will be on the ground between 2023 and 2025. But a new estimate indicates that the accident can occur by the end of 2019, according to "Space.com".
The Soviet enthusiasm has been aimed at launching a spacecraft in the "orbit waiting" of the Earth to be a plague in a place, fitted with a rocket and string engine.
The confirmation will then be launched to target its target, but if it is failing at this stage, it will remain in orbit and will be renamed Kosmos.
The Kosmos 482 test was launched by the "Soviet" Molniya on March 31, 1972, and discovered the "waiting" orbit on the ground.
However, Soviet scientists failed to probe the Venus trail, which was divided into 4 parts, with two remaining pieces in the down street, and # 39 ; falling over New Zealand in two days.
"Main engine stopped the degree of escape 125 seconds after launching due to the failure of time on the probation board, and as a result the spacecraft entered Orbit orbits around Earth, "NASA said.
Well: A Sun