On this day in space! Aug. 20, 1977: Voyager 2 launches to the outer planets
AI-summarised brief · reviewed before publication
On August 20, 1977, NASA launched Voyager 2, the first of two Voyager missions, to exploit a rare planetary alignment that allowed a single spacecraft to visit Jupiter, Saturn, Uranus, and Neptune. After completing a 12‑year tour, Voyager 2 entered interstellar space in 2018, becoming the only probe to reach all four gas giants and to travel beyond the Sun’s heliosphere. It continues to transmit data from three operational instruments, while engineers conserve power by shutting down non‑essential systems.
💡 Why It Matters
- · Voyager 2’s extended mission delivers unique insights into the Kuiper Belt, a region previously inaccessible to human-made probes.