The previous mission , Venera 2MV - 1 No. 1 , was launched several days earlier .
It was the second of two Venera 2MV - 1 spacecraft , both of which failed to leave Earth orbit .
The previous mission , Venera   - 1 No. 1 , was launched several days earlier .
It was the second of two Venera 2MV - 1 spacecraft , both of which failed to leave Earth orbit .