Voyager 2

Voyager 2 explored Jupiter and Saturn, then used carefully timed planetary encounters to become the only spacecraft to visit Uranus and Neptune; its extended mission later crossed the heliopause.

voyager-2 is a interstellar probe focused on Outer Solar System and interstellar space; its mission record separates planned measurements from the results actually documented.

For voyager-2, the defining design choice was to use a interstellar probe for only spacecraft to visit uranus and neptune. That choice determines what the spacecraft can observe, how it moves or operates, and what risks the team must manage.

For voyager-2, the cited record places the spacecraft at Outer Solar System and interstellar space; the engineering profile keeps its instrument, power, communications, and navigation details separate from the mission narrative.

Documented result: Only spacecraft to visit Uranus and Neptune. For voyager-2, that result is the evidence users can compare with the original objective and source record.

The connected engineering entry for voyager-2 explains which hardware produced or supported these measurements.