Voyager Program: NASA’s Space Initiative That’s Challenging the Years

NASA launched its twin spacecraft into space from Florida with big hopes as part of the Voyager program back in 1977.

The Voyager program’s main mission was to launch twin spacecraft to explore Jupiter, Saturn, the latter’s ring, their satellites and continue their search for a planned term. After the twins successfully achieved NASA’s goals, experts realized the route could continue to Uranus and Neptune, which made them the first and the last spacecraft to visit Uranus and Neptune.

Voyagers as twins

Having built the spacecraft, the experts thought that a 4-planet route was possible. However, it was later concluded that such a long journey would be difficult in terms of financing. Even though Voyagers were planning to work on two planets, the experts found a route, after working on 10,000 different paths that could lead Voyager 2 to the two gas giants.

In 1977, Voyager 2 was the first one to get launched, on August 20, from Kennedy Space Center at Cape Canaveral, Florida. Voyager 1 was sent shortly after its twin, on September 5, from the same location. Both spacecraft were launched with Titan-Centaur rocket.

Credit: NASA

‘Trailblazing a path for future generations’

“Voyager 1 and Voyager 2 are the ships that opened the Solar System for the human species, trailblazing a path for future generations.” Carl Sagan mentions in his book Pale Blue Dot. “We were almost wholly ignorant about most of the planetary part of the Solar System.”

On 9 July 1979, Voyager 2 managed to reach Jupiter and on 25 August 1981, it reached Saturn, which was the final destination according to the official plan. With all the mechanics working, NASA continued to the route. With the help of satellites, they were able to reduce the time of arrival to Uranus from 30 years to 12.

And on 24 January 1986, the Voyager 2 spacecraft arrived at Uranus to provide detailed information regarding the planet, its moons, dark rings and magnetic field. Finally, on 25 August 1989, Voyager 2 succeded its route by reaching Neptune. Meanwhile, the distance between Earth and Uranus is roughly 1.6 billion miles or 2.6 billion kilometers at their closest.

After reaching Saturn as its first destination on 5 March 1979, Voyager 1 completed its mission arriving at Jupiter on 12 November 1980. Both spacecraft are currently in interstellar space. “The twin Voyager 1 and 2 spacecraft are exploring where nothing from Earth has flown before. Both spacecraft are still sending scientific information about their surroundings through the Deep Space Network,” according to NASA’s Jet Propulsion Laboratory.

What the primary mission was

“The primary mission was the exploration of Jupiter and Saturn. After making a string of discoveries there — such as active volcanoes on Jupiter’s moon Io and intricacies of Saturn’s rings — the mission was extended,” NASA says. “Voyager 2 went on to explore Uranus and Neptune and is still the only spacecraft to have visited those outer planets. The adventurers’ current mission, the Voyager Interstellar Mission (VIM), will explore the outermost edge of the Sun’s domain. And beyond”.

For over 44 years, Voyagers have been helping NASA collect data about possible extraterrestrial life. Even though some experts claimed that Voyager 1 would return data in 2025, NASA says they are planning to continue to use the twins for over a decade.