An artist's illustration of Voyager 1. Depositphotos.

46 Years and Counting: Voyager 1’s Remarkable Journey Beyond the Stars

Celebrating NASA's historic spacecraft and its unmatched feats in interstellar exploration.


On September 5, 1977, NASA unveiled a marvel: Voyager 1. This spacecraft, which embarked on its journey from Cape Canaveral, made history in 2012 by stepping into the realm of interstellar space, becoming the first to achieve such a feat.

Not just any spacecraft, Voyager 1 stands out as the first capable of identifying and rectifying its own on-board hiccups. Weighing in at 722 kilos, it remains functional and committed to its ongoing mission: mapping the far reaches of our solar system—including the enigmatic Kuiper belt—and dipping its sensors into the mysteries of the immediate interstellar abyss.


Journeying Beyond the Known

Originally designed to pay visits to Jupiter and Saturn, Voyager 1 exceeded expectations. It beamed back unprecedented, detailed images of these planets. On August 25, 2012, located 122 astronomical units away, it left the heliopause in its wake and ventured into interstellar space.


Voyager 1, currently 161 astronomical units (roughly 24.1 billion kilometers) from the Sun, holds a record: it’s the most distant spacecraft from Earth and the premier pioneer to exit our Solar System. In December 2018, its twin, Voyager 2, followed in its path, while Voyager 1 remains our furthest human-crafted object in space, with its pace surpassing all other space probes relative to Earth and the Sun.

The Oort Cloud and Voyager’s Unbeatable Speed

As it zooms forward, Voyager 1 sets its sights on the Oort Cloud—a vast assembly of trans-Neptunian entities nearly a light-year away from the Sun. Predictions estimate its entrance into this zone in about 300 years. But it’ll be around 17,700 years before it fully exits this region.

Intriguingly, even though Voyager 2 was launched a mere 16 days prior, it’ll never surpass its twin. Similarly, the New Horizons mission to Pluto and the Kuiper Belt, despite its initial swifter launch speed, won’t outpace Voyager 1—thanks to gravity assists that gave Voyager 1 an advantageous velocity boost. By the time New Horizons matches Voyager 1’s distance from the Sun, it’ll be traveling at a slower 13 km/s.


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Written by Ivan Petricevic

I've been writing passionately about ancient civilizations, history, alien life, and various other subjects for more than eight years. You may have seen me appear on Discovery Channel's What On Earth series, History Channel's Ancient Aliens, and Gaia's Ancient Civilizations among others.

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