2013 - Voyager

Revisiting Voyager 2013 – The Little Mission That Keeps on Giving

NASA officially announced that Voyager 1 had entered interstellar space — a moment decades in the making. The evidence came from plasma wave data collected in late 2012 / early 2013, showing a dramatic jump in plasma density consistent with leaving the heliosphere. For context, Voyager 1 was about 122 AU from the Sun (that’s ~11 billion miles). voyager 2013

Voyager 2013 wasn’t just a “cool fact” — it reshaped our model of the heliosphere’s edge. It showed the boundary isn’t a clean line but a turbulent, frothy region. And both probes, running on ~40-year-old tech with 68KB of memory, continue sending data back as of 2025. Revisiting Voyager 2013 – The Little Mission That

In 2013, Voyager 2 was still inside the heliosphere (~100 AU), but closing in. It would eventually cross into interstellar space in 2018. Voyager 2013 wasn’t just a “cool fact” —

Anyone else remember following the 2013 announcement in real time?

It’s easy to think of the Voyager missions as ancient history (they launched in 1977, after all), but 2013 was a landmark year that reminded the world just how alive and groundbreaking these twin probes still are.

If you want a moment when Voyager felt “modern” again, 2013 is it. That was the year the mission transitioned from “planetary flyby relic” to “deep space weather station.” It’s a powerful reminder that NASA’s long-haul missions often reveal their biggest secrets not at launch, but decades later.