1. The Legendary Journey Voyager 2, launched in 1977, has traveled over 12 billion miles (20 billion km) from Earth. It’s the only spacecraft to visit all four giant planets — Jupiter, Saturn, Uranus, and Neptune. In 2018, it crossed the heliopause — the invisible boundary where the Sun’s influence ends, and interstellar space begins. 2. The “Impossible” Encounter Recently, Voyager […]
1. The Legendary Journey Voyager 2, launched in 1977, has traveled over 12 billion miles (20 billion km) from Earth. It’s the only spacecraft to visit all four giant planets — Jupiter, Saturn, Uranus, and Neptune. In 2018, it crossed the heliopause — the invisible boundary where the Sun’s influence ends, and interstellar space begins. 2. The “Impossible” Encounter Recently, Voyager […]