when do the borg first appear in voyager
Borg (Star Trek) The Borg make frequent appearances in Star Trek: Voyager, which takes place in the Delta Quadrant, the region of the galaxy from which the Borg are believed to have originated. The Borg are first discovered by Voyager in the third-season episode "Blood Fever". Chakotay discovers the body of what the local humanoids refer to as "the Invaders"; which turns out to be the Borg. In "Scorpion", the Borg are engaged in a war of attrition against Species 8472, whose biological defences, developed as a feature of their evolution in fluidic space, are a match for the Borg's nanoprobes. In one of the few instances of the Borg negotiating, in exchange for safe passage through Borg space, the Voyager crew devises a way to destroy the otherwise invulnerable Species 8472. A Borg drone, Seven of Nine, is dispatched to Voyager to facilitate this arrangement as Captain Janeway refuses to allow the Borg to use neural implants for communication with the Voyager crew.
Oort cloud Space probes have yet to reach the area of the Oort cloud. Voyager 1, the fastest[51] and farthest[52][53] of the interplanetary space probes currently leaving the Solar System, will reach the Oort cloud in about 300 years[4][54] and would take about 30,000 years to pass through it.[55][56] However, around 2025, the radioisotope thermoelectric generators on Voyager 1 will no longer supply enough power to operate any of its scientific instruments, preventing any exploration by Voyager 1. The other four probes currently escaping the Solar System either are already or are predicted to be non-functional when they reach the Oort cloud; however, it may be possible to find an object from the cloud that has been knocked into the inner Solar System.