Voyager 1 facts: the record, the launch, and deep space

Voyager 1 facts start with a launch that almost didn’t happen, and end with a spacecraft still far beyond Earth. NASA sent Voyager 1 into space on September 5, 1977, as part of the Voyager program, just 16 days after its twin, Voyager 2.

When was Voyager 1 launched?

Voyager 1 was launched by NASA on September 5, 1977. It flew as part of the Voyager program, and its twin, Voyager 2, had already launched 16 days earlier.

The mission nearly failed at the start because Titan’s LR-91 second stage shut down prematurely. Even so, Voyager 1 continued on and became a spacecraft with a long list of firsts.

What did Voyager 1 do at Jupiter?

Voyager 1 made a close pass by Jupiter at about 349,000 kilometers from the planet’s center. It was the first probe to provide detailed images of the moons of Jupiter and Saturn, and it discovered two new moons of Jupiter: Metis and Thebe.

On February 25, 1979, Voyager 1 sent back the first detailed image of Jupiter’s Great Red Spot. That flyby became one of the key chapters of the mission.

What happened at Saturn and Titan?

Voyager 1 also flew by Saturn and Saturn’s largest moon, Titan. The Titan flyby helped end its planetary science mission.

That Saturn encounter mattered because Voyager 1 was not just passing through one planet’s neighborhood. It was collecting detailed images and extending what humans could see in the outer Solar System.

What is the Voyager Golden Record?

The Voyager Golden Record is a 12-inch golden phonograph record carried aboard Voyager 1. It was intended as both a time capsule and an interstellar message.

A committee chaired by Carl Sagan selected the contents of the record. The object traveled with the spacecraft as part of the mission’s broader identity, linking Voyager 1 with a message meant to ride along into deep space.

When did Voyager 1 reach interstellar space?

Voyager 1 became the first spacecraft to enter interstellar space on August 25, 2012. That milestone came long after its planetary flybys and marked another major first for the probe.

On February 14, 1990, Voyager 1 took the first family portrait of the Solar System as seen from outside. That image came before the interstellar-space milestone and after the spacecraft had already left its planetary targets behind.

Why do people still talk about Voyager 1 facts?

As of August 2026, Voyager 1 was the most distant human-made object from Earth. That fact sits alongside the mission’s earlier records: launch in 1977, the Jupiter and Saturn flybys, the Great Red Spot image, the Titan passage, and the Golden Record.

Voyager 1’s story is a chain of dated milestones. It launched after Voyager 2, survived a launch problem, explored Jupiter and Saturn, crossed into interstellar space, and kept going far beyond the Solar System’s familiar worlds.

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